A Comprehensive Glossary of Military and Defense Acronyms

Estimated read time 58 min read

In the landscape of cyber warfare, understanding the terminology and acronyms used in the military and defense sectors is crucial. This glossary serves as a valuable resource for enthusiasts, professionals, and researchers seeking clarity in the realm of cyber warfare and its intersection with military operations.

Table of Contents


AAR – After Action Review

A process utilized to analyze the performance and effectiveness of a task or operation after its completion.

AARM – After Action Review Module

A specific module designed to assist in conducting After Action Reviews by collating data and providing an analysis.

AAVS – Advanced Aircraft Virtual Simulator

A sophisticated virtual platform used for training pilots, allowing them to experience realistic flight scenarios.

ABCT – Armor Brigade Combat Team

An operational military unit composed of armored vehicles and supportive infantry and artillery units.

ACSL – Abrams Common Software Library

A shared repository of software components used in the operation and management of the Abrams tank series.

ACT – Artillery and Chemical Training

A specialized training regimen designed to equip soldiers with the skills necessary to handle artillery and chemical warfare.

ADA – Air Defense Artillery

Military units or systems specifically designed to combat airborne threats.

AD CTC – Assistant Director Combat Training Centers

The official tasked with overseeing the operations of combat training centers.

AD SM – Assistant Director Support Mission

The official responsible for assisting in the planning and execution of support missions.

AD SRP – Assistant Director Sustainable Range Program

The position responsible for overseeing programs aimed at ensuring the sustainability of military training ranges.

AD SS – Assistant Director Soldier Systems

An official in charge of the development and implementation of systems that enhance soldier performance.

ADVNESTS – Advanced Networked Electronic Support Threat Sensors

Advanced sensor systems that provide electronic support, typically used for threat detection and network surveillance.

AFATDS – Advanced Field Artillery Tactical Data System

A high-tech system designed to process and communicate real-time battlefield information specifically for field artillery operations.

AFMMAST – Air Force Medical Modeling and Simulation Training

A specialized training program in the Air Force that uses modeling and simulation technologies to train medical personnel.

AFSM – Adaptive Full Spectrum Module

A module designed to adapt across a full spectrum of conditions, generally used in military technology.

AFSS – Automatic Fire Suppression System

An automated system that detects and suppresses fire, often used in military vehicles and installations.

AFV – Armored Fighting Vehicle

A military vehicle designed for frontline combat, fortified with strong armor and equipped with heavy weaponry.

AGATCS – Army Ground Aerial Target Control System

A control system used by the Army to manage and coordinate ground to aerial target operations.

AGTS – Advanced Gunnery Training System

A sophisticated training system used to enhance gunnery skills and precision.

AHIP – Aviation Homestation Interim Package

A package of temporary measures or equipment for aviation units when they are based at their home station.

AI3 – Accelerated Improved Intercept Initiative

A rapid development and implementation initiative aimed at improving interception capabilities.

AIM – Abrams Integrated Management

A comprehensive management system specifically designed for the Abrams tanks.

AKI – Aircraft Kill Indicator

A device or system used to signify the successful downing of an enemy aircraft.

ALT – Advanced Learning Technologies

Modern, innovative technologies used to enhance learning processes and outcomes.

AMCOM – Aviation & Missile Command

A division of the military responsible for the development and maintenance of aviation and missile systems.

AMCS – Army Mission Command System

A system used by the Army to facilitate the planning, conducting, and assessing of missions.


BAA – Broad Agency Announcement

A public announcement made by government agencies about research interests, inviting organizations to submit research proposals.

BATS – Ballistic Aerial Targets System

A system used for launching and controlling aerial targets for weapons testing and training.

BCTC–ES – Battle Command Training Capability–Equipment Support

The support element focused on the maintenance and readiness of equipment used in battle command training.

Bde – Brigade

A military unit typically composed of several battalions and commanded by a brigadier general.

BDM – Bunker Defeat Munitions

A class of munitions specifically designed to penetrate and destroy bunkers and fortified positions.

BEMT – Basic Electronics Maintenance Trainer

A training program designed to teach the basics of maintaining electronic systems.

BES – Battlefield Effects Simulator

A simulator used to recreate the effects of battlefield conditions for training purposes.

BFIST – Bradley Fire Support Team

A team operating from a Bradley Fighting Vehicle, providing fire support in combat scenarios.

BFV – Bradley Fighting Vehicle

An armored troop transport vehicle, equipped with various weapons for infantry support.

BiLAT – Bilateral Negotiation Trainer

A training tool used to teach the principles and skills of two-sided negotiations.

BLCSE – Battle Laboratory Collaborative Simulation Environment

A simulation environment used for collaborative testing and development of new military tactics and technologies.

BMC – Brigade Modernization Command

A command within the military responsible for modernizing and improving brigade-level operations.

BML – Battle Management Language

A standardized language used in systems and software that manage battlefield operations.

BOI – Basis Of Issue

The official plan or document that determines how equipment and resources are issued in a military unit.

BOIP – Basis Of Issue Plan

A detailed plan outlining the distribution and allocation of equipment and supplies to military units.

BOSS – Boom Operator Simulation System

A simulation system used to train operators handling refueling booms on tanker aircraft.

BVS – Battlefield Visualization System

A technology that provides a visual representation of the battlefield, enhancing situational awareness and decision-making.


C3 – Command, Control and Communications

Three fundamental pillars of military structure, referring to the exercise of authority and direction by a commander, communication processes, and control mechanisms.

C3T – Command, Control and Communications–Tactical

This relates to tactical command, control, and communication processes in military operations.

C4I – Command, Control, Communications, Computers and Intelligence

An extension of C3 that includes computer systems and intelligence operations, essential for strategic planning and decision-making.

C4ISR – Command, Control, Communications, Computer, Intelligence Surveillance and Reconnaissance

This covers command, control, communication, computer-based systems, intelligence, surveillance, and reconnaissance operations, instrumental in modern warfare.

C4ISR/EW – Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance/Electronic Warfare

A further extension of C4ISR that includes electronic warfare components.

CA – Component Architecture

The structure and interaction of the components in a system, including software and hardware in a network.

CACCTUS – Combined Arms Command and Control Trainer Upgrade System

A training system designed to enhance proficiency in commanding and controlling various military arms.

CAC–T – Combined Arms Center–Training

The center responsible for coordinating and conducting training across different military branches.

CACTF – Combined Arms Collective Training Facility

A facility specifically designed for training troops in combined arms operations.

CAD – Computer Aided Design

A technology used to create detailed, technical, three-dimensional designs with the help of computers.

C–AGTS – Conduct of Fire Trainer Advanced Gunnery Training System

An advanced training system used to improve the skills related to fire conduction and gunnery.

CALFEX – Combined Arms Live Fire Exercises

Exercises where various military branches coordinate and practice live fire drills.

CAS – Close Air Support

Air action conducted against hostile targets in close proximity to friendly forces.

CASM – Close Air Support Module

A module focused on the principles and practice of providing close air support.

CBCSE – Common Battle Command Simulation Equipment

Standardized simulation equipment used in battle command training.

CBID/IMI – Computer–Based Instructional Development/Interactive Multimedia Instruction

Techniques that use computer-based systems and interactive multimedia to develop instructional content.

CBRN – Chemical, Biological, Radiological and Nuclear

A term referring to the types of threats or hazards involving chemical, biological, radiological, and nuclear materials.

CCM – Center for Countermeasures

An organization or facility dedicated to developing countermeasures against various threats.

CCTT – Close Combat Tactical Trainer

A simulation-based trainer designed to enhance skills related to close combat tactics.

CCWS – Close Combat Weapon Systems

Weapon systems specifically designed for close combat scenarios.

CDR – Critical Design Review

A multi-disciplined technical review to ensure a system can proceed into fabrication, demonstration, and testing.

CDS – Cross Domain Solution

Solutions that enable the secure transfer of information between networks of different security classifications.

CDT – Common Driver Trainer

A standardized training system for drivers of various military vehicles.

CE – Common Equipment

Equipment that is standardized and used across various units or operations.

CFFT – Call For Fire Trainer

A training program focused on the correct procedures for calling in artillery or air support.

CFFT III – Call For Fire Trainer Increment III

The third iteration or level of the Call For Fire Trainer program.

CFV – Cavalry Fighting Vehicle

An armored vehicle designed for the use of cavalry units in modern warfare.

CGF – Computer Generated Forces

Simulated forces used in training and mission rehearsals, generated by computer programs.

CI – Counter Intelligence

Activities aimed at protecting against espionage, other intelligence activities, sabotage, or assassinations conducted for or on behalf of foreign powers.

C–IED – Counter–Improvised Explosive Device

Efforts and measures taken to combat the threat posed by improvised explosive devices.

CIS – Core Instrumentation System

The fundamental system that provides the necessary instrumentation for data collection and analysis.

CLS – Combat Lifesavers

Non-medical soldiers who are trained to provide lifesaving measures as a secondary mission.

CMWS – Common Missile Warning System

A standardized system designed to detect and warn of incoming missile threats.

CNO – Computer Network Operations

Activities to operate and manage information network systems, including defense, exploitation, and attack.

COB–Vs – Civilian on the Battlefield Vehicles

Vehicles used to simulate the presence of civilians on the battlefield during training exercises.

COE – Common Operating Environment

A unified technology environment that supports operations across different domains.

COFT–SA – Conduct Of Fire Trainer–Situational Awareness

A fire training module with an emphasis on improving situational awareness in the field.

CONUS – Continental United States

A term used to describe the 48 contiguous states and the District of Columbia.

COP – Common Operating Picture

A continuously updated overview of an operation, shared by all participants, to facilitate collaborative planning and execution.

COTS – Commercial Off The Shelf

Refers to ready-made products that are available for purchase from commercial sources.

CP – Command Post

The location from which a commander controls and coordinates military operations.

CPD – Capability Production Document

A document that details the production specifics of a particular military capability.

CPM – Consolidated Product Line Management

A strategy for managing a group of related products under a single team.

CPXs – Command Post Exercises

Exercises that are carried out within command posts to improve operational readiness.

CREW2 – Counter Radio Electronic Warfare 2

The second version of the counter radio electronic warfare system, which includes techniques used to deny or disrupt enemy’s use of the electromagnetic spectrum.

CSI – Crew Station Interface

The interaction mechanisms between a vehicle’s crew and its onboard systems.

CT – Combat Trainers

Devices or systems designed to simulate combat situations for training purposes.

CTC – Combat Training Center

A facility specifically designed for comprehensive combat training.

CTC Aviation – Combat Training Center Aviation

The aviation-specific portion of a combat training center.

CTC–IS – Combat Training Center–Instrumentation System

The system responsible for the instrumentation and recording at a combat training center.

CTC LFM – Combat Training Center Life Fire Modernization

The process of updating and improving live fire exercises at a combat training center.

CTC MOUT–IS – Combat Training Center Military Operations on Urban Terrain–Instrumentation System

The system of instrumentation for training military operations in urban terrains.

CTEIP – Central Test and Evaluation Investment Program

A program for investing in the testing and evaluation of military equipment and techniques.

CTF – Collective Training Facility

A facility where collective training exercises, involving multiple units or teams, take place.

CTIA – Common Training Instrumentation Architecture

A standardized framework for the equipment and systems used in military training.

CTR – Continuous Technical Refresh

The ongoing process of updating and improving technical systems.

CUI – Controlled Unclassified Information

Information that requires safeguarding or dissemination controls pursuant to and consistent with applicable law, regulations, and government-wide policies.

CVE – Common Virtual Environment

A shared virtual space where simulations or exercises can take place.

CVT – Contractor Verification Test

A test to verify the performance of systems or components provided by a contractor.

CVTESS – Combat Vehicle Tactical Engagement Simulation System

A simulation system designed to replicate combat scenarios for training on tactical vehicles.


D3A – Decide, Detect, Deliver and Assess

A strategic approach involving decision-making, detection, delivery and assessment in military operations.

DA – Department of the Army

The United States Department of the Army, a military department within the Department of Defense.

DAGIR – Digital Air Ground Integrated Range

A modern range system that integrates air and ground operations using digital technologies.

DAMI – Department of the Army Military Intelligence

The department responsible for military intelligence within the U.S. Army.

DAMO-TR – Department of the Army Military Operations-Training

The department responsible for the planning and execution of military operations training within the Army.

DA PAM – Department of the Army Pamphlet

Official publications from the U.S. Department of the Army, which provide guidance and procedures for operations.

DASA DEC – Deputy Assistant Secretary for the Army for Defense Exports and Cooperation

An official who assists the Secretary of the Army in matters of defense exports and international cooperation.

DATE – Decisive Action Training Environment

A training environment designed to prepare forces for decisive and wide-ranging actions in different operational environments.

DAWIA – Defense Acquisition Workforce Improvement Act

An Act aimed at improving the knowledge and skills of the defense acquisition workforce.

DCGS–A – Distributed Common Ground System–Army

An Army intelligence system that enables users to access and post data, process information, and disseminate Intelligence, Surveillance and Reconnaissance (ISR) information.

DE – Directed Energy

A form of energy weapon that emits energy in a desired direction without the need for a projectile.

DET – Directed Energy Test

A test conducted to assess the capabilities of directed energy systems.

DEW – Directed Energy Weapon

A weapon that uses directed energy to damage or destroy enemy equipment, facilities, and personnel.

DF – Direction Finding

A method of establishing the direction from which a received signal was transmitted, often used in navigation and surveillance.

DIRCM – Directed Infrared Counter Measures

A system designed to protect aircraft from heat-seeking missiles by directing infrared energy towards them.

DIS – Distributed Interactive Simulation

A simulation method in which multiple participants interact within a virtual environment.

DIVE – Dynamic, Immersive, Virtual Environment

An environment in which users can interact with computer-simulated surroundings in a seemingly real or physical way.

DMPBAC – Digital Multi–Purpose Battle Area Course

A digital training course designed to simulate various battle scenarios.

DMPRC – Digital Multi–Purpose Range Complex

A complex designed to facilitate a range of digital training scenarios.

DMPTR – Digital Multi–Purpose Training Range

A range set up for diverse digital training purposes.

DoD – Department of Defense

The U.S. federal department responsible for coordinating and supervising all agencies and functions related directly to national security and the U.S. military.

DODIIS – Department Of Defense Intelligence Information Systems

Systems used to handle intelligence information within the Department of Defense.

DOF – Degrees Of Freedom

A term used in mechanics and robotics to specify the number of independent parameters that define the state of a physical system.

DOT&E – Director Operation Test and Evaluation

The official responsible for the independent assessment of the operational effectiveness and suitability of defense systems.

DRTS – Digital Range Training System

A training system that uses digital technologies to simulate a range of scenarios.

DSTS – Dismounted Soldier Training System

A training system specifically designed to train dismounted soldiers.

D/T – Diagnostic and Troubleshooting

The process of identifying and resolving problems, usually in the context of technical and mechanical systems.

DTE – Distributed Testing Event

A testing event that involves distributed systems or participants, often occurring simultaneously at different locations.

DVE – Driver’s Vision Enhancer

A device used to improve the vision of vehicle drivers in various conditions, such as in darkness or inclement weather.

DVH – Double–V Hull

A type of hull specifically designed to protect against underbody threats, like IED blasts.

DXTRS – Division eXercise Training and Readiness System

A system that supports division-level training exercises and readiness evaluations.


E3 – Electromagnetic Environmental Effects

The impact of the electromagnetic environment on the operational capability of military systems and equipment.

EA – Electronic Attack

The use of electromagnetic or directed energy to attack the enemy’s equipment, communications, or combat capability.

E–CSTs – Enhanced–Control Signal Transmitters

Advanced devices used to transmit control signals over a distance.

ED – Embedded Diagnostics

Diagnostic systems or functions that are integrated into the equipment or system they monitor.

EDM – Electronic Data Manager

A tool or system that assists in the organization, storage, and retrieval of data.

EHs – Explosive Hazards

Any explosive device that presents a threat to operations or personnel.

ELITE – Emergent Leader Immersive Training Environment

A training environment designed to develop leadership skills using immersive technologies.

EMC – Electromagnetic Compatibility

The ability of electronic and electrical systems or components to work correctly together without causing interference to each other.

EMI – Electromagnetic Interference

Disturbance that affects an electrical circuit due to electromagnetic radiation emitted from an external source.

EMP – Electromagnetic Pulse

A burst of electromagnetic radiation that can damage electrical and electronic devices.

EMR – Electromagnetic Radiation

Radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

EMRE – Electromagnetic Radiation Effects

The impact that electromagnetic radiation can have on equipment, systems, and the environment.

EMT – Emergency Medical Technician

A healthcare professional who provides emergency medical services, often in a pre-hospital setting.

EO – Electro–Optic

Pertaining to technology or devices that operate by the interaction of light with various materials.

EO/IR – Electro–Optical/Infrared

Refers to technology or systems that use both light and heat sensors to detect and interpret information.

ERF – Entity Resolution Federation

A collaborative approach to resolving data about entities from different data sources.

ES – Electronic Support

The use of electronic systems to support military operations.

EST – Engagement Skills Trainer

A simulator used to train military personnel in the basic skills necessary for engagement in combat.

EW – Electronic Warfare

The use of the electromagnetic spectrum to achieve operational advantages over an adversary.

EWT – Electronic Warfare Test

A test conducted to evaluate the performance of electronic warfare equipment and strategies.

EXCON – Exercise Control

The body or team responsible for the overall direction and control of an exercise.


FA – Field Artillery

Refers to large-caliber weapons used to support infantry and armored troops in the field.

FASIT – Future Army System of Integrated Targets

A project aiming to develop an integrated system of targets for the future army training environment.

FCS – Fire Control System

An aid to weapon systems, designed to direct the firing of a weapon or weapons to achieve a hit.

FECM – Fires Effects Cell Module

A module designed to simulate the effects of various types of fires in a training environment.

FEP – Firepower Enhancement Program

A program aimed at increasing the power and effectiveness of military firepower.

FHTE–LS – Future Holistic Training Environment–Live Synthetic

A training environment that integrates live and synthetic training methods for a more comprehensive training approach.

Field OPS – Field Operations Directorate

The directorate responsible for coordinating and overseeing field operations.

FMS – Foreign Military Sales

A U.S. government program for selling defense equipment, services, and training to foreign nations.

FOCUS – Field Operations Customer Support

A support system for clients involved in field operations.

FOT – Force–On–Target

Refers to ensuring the application of force on the intended target.

FOUO – For Official Use Only

A designation used to protect unclassified information that may be sensitive.

FOV – Family of Vehicles

A group of related military vehicles designed and built on a common platform.

FSS – Fire Support Specialists

Military personnel specialized in coordinating and directing fire support activities.

FS XXI – Flight School XXI

A flight school designed to provide comprehensive and advanced flight training.

FTS – Family of Training Systems

A suite of training systems related by function, capabilities or design principles.

FTS – Field Training System

A system designed for conducting training exercises in a field environment.

FTT – Field Tactical Trainer

A training tool used to prepare military personnel for field and tactical operations.

FUA – First User Assessment

An initial assessment conducted by the first user of a system or technology, often done to provide early feedback for improvement.


GAT – Government Acceptance Testing

The testing process undertaken by a government entity to ensure a system or product meets specified requirements before acceptance.

GCS – Ground Combat Systems

Refers to all systems that are used in ground-based combat operations.

GCV – Ground Combat Vehicle

A vehicle specifically designed and equipped for ground combat operations.

GEOINT – Geospatial Intelligence

Intelligence about the human activity, natural or manmade features on the Earth, derived from the exploitation and analysis of imagery and geospatial information.

GFT – Games For Training

The use of game-based technology and principles to enhance military training.

GHz – Gigahertz

A unit of frequency equal to one billion cycles per second, used to measure the frequency of waves, such as those of the electromagnetic spectrum.

GOCO – Government Owned/Contractor Operated

A model in which the government owns a facility or resource but contracts out its operation to a private contractor.

GOGO – Government Owned/Government Operated

A model in which a government agency owns and also operates a facility or resource.

GOTS – Government Off The Shelf

Refers to software and hardware products that are readily available for purchase from governmental agencies.

GPR – Ground Penetrating Radar

A geophysical method that uses radar pulses to image the subsurface, often used to detect buried objects or changes in material properties.

GPS – Global Positioning System

A system of satellites that provides geolocation and time information to a GPS receiver anywhere on or near the Earth’s surface.

GSC – Global Simulation Capability

A simulation capability that allows for the conduct of exercises on a global scale.

GSM – Global System for Mobile

A standard developed for mobile communication that is widely used around the world.


HCC – Human Intelligence Control Cell

An organizational unit responsible for controlling and directing human intelligence operations.

HEAT – High Mobility Multi–Purpose Wheeled Vehicle (HMMWV) Egress Assistance Trainer

A training system used to prepare troops to escape safely from a HMMWV during emergencies.

HEL – High Energy Laser

A laser that produces a high amount of energy, often used in military operations for missile defense and other applications.

HEMTT – Heavy Expanded Mobility Tactical Truck

A series of 8×8 diesel powered off-road capable trucks, used by the U.S. military.

HINT – Hybrid Irregular Warfare (IW) Network–defeat Toolkit

A toolkit designed to help military forces defeat networks involved in irregular warfare.

HITL – Human–In–The–Loop

Refers to systems where human decision-making is integrated into the system operations.

HITS – Home Station Instrumentation Training System

A training system that provides instrumentation for realistic and effective training at the home station.

HLA – High Level Architecture

A general-purpose software architecture for constructing simulations and other distributed interactive applications.

HMD – Helmet Mounted Displays

A type of display system that is worn on the head or as part of a helmet.

HMDS – Husky Mounted Detection Systems

Detection systems mounted on a Husky vehicle, often used for detecting mines and improvised explosive devices (IEDs).

HMMWV – High Mobility, Multi–Purpose, Wheeled Vehicle

Often pronounced as Humvee, it’s a light, highly mobile, diesel-powered, four-wheel-drive vehicle used by the U.S. military and others.

HOT – Hands On Trainer

A type of training that involves direct, hands-on use of the equipment or systems being taught.

HPM – High Power Microwave

A type of directed-energy weapon that uses high-frequency electromagnetic radiation.

HQDA – Headquarters Department of the Army

The corporate office of the United States Army that provides the Secretary of the Army, Chief of Staff of the Army, Vice Chief of Staff of the Army, and other members with operational and intelligence reports.

HSAT – High Speed Aerial Targets

Targets that move at high speeds in the air for use in testing and training exercises.

HUMINT – Human Intelligence

Intelligence gathered from human sources.

HVAC – Heating, Ventilation, Air Conditioning

A system used to provide heating and cooling services to buildings.


IBCT – Infantry Brigade Combat Team

A modular designed team, part of the US Army’s transformation initiative, focused on infantry combat operations.

ICD – Initial Capabilities Document

A document that identifies the need for a materiel approach, or an approach that is a combination of materiel and non-materiel, to a specific capability gap derived from an initial analysis of materiel approaches executed by the combat developer.

ICT – Institute for Creative Technologies at the University of Southern California

A research institute at the University of Southern California that studies and develops immersive technologies.

ID/IQ – Indefinite Delivery/Indefinite Quantity

A type of contract that provides for an indefinite quantity of supplies or services during a fixed period of time.

IE – Integration Event

An event designed to integrate various systems, processes, or teams together.

IED – Improvised Explosive Device

A bomb constructed and deployed in ways other than conventional military action.

IED–D – Improvised Explosive Device–Detect/Defeat

Techniques or equipment used to detect and neutralize improvised explosive devices.

IEDES – Improvised Explosive Device Effects Simulator

A simulator that imitates the effects of an improvised explosive device for training purposes.

IEEE – Institute of Electrical and Electronics Engineers

A professional association dedicated to advancing technological innovation and excellence.

IEWTPT – Intelligence and Electronic Warfare Tactical Proficiency Trainer

A training tool for military personnel to improve their proficiency in intelligence and electronic warfare tactics.

IGDS – Image Generation/Display System

A system used to generate and display images, often used in simulation and training environments.

ILE – Immersive Learning Environments

Interactive, virtual environments designed for learning purposes.

ILTE – Integrated Live, Virtual, Constructive (LVC) Test Environment

A test environment that integrates live, virtual, and constructive elements to provide a comprehensive testing framework.

IMC – Instrument Meteorological Conditions

Weather conditions that require pilots to fly primarily by reference to instruments, and not by outside visual references.

IMI – Interactive Multimedia Instruction

An approach to teaching that uses various forms of interactive multimedia, such as video, audio, text, animation, and virtual reality.

I–MILES – Instrumentable–Multiple Integrated Laser Engagement System

A training system that uses laser beams to simulate battle engagements.

IMO – Instrumentation Management Office

An office responsible for managing instrumentation systems and technologies.

I–MTS – Integrated–Military Operations on Urban Terrain Training System

A training system designed to prepare military personnel for operations in urban environments.

INSCOM – Intelligence and Security Command

A direct reporting unit that conducts intelligence, security, and information operations for military commanders and national decision-makers.

IO – Information Operations

Actions taken to affect adversary information and information systems while defending one’s own information and information systems.

I/O – Instructor/Operator

An individual responsible for instructing and operating training systems or equipment.

IOC – Initial Operational Capability

The initial ability to employ a new capability in its intended operational environment.

IOS – Instructor/Operator Station

A location from which an instructor or operator controls a training or simulation system.

IPR – In Process Review

A review conducted during the development process to assess progress and make necessary adjustments.

IPT – Integrated Product Team

A multidisciplinary group of professionals who work together to develop a specific product or process.

IR – Instrumented Ranges

Ranges equipped with automated systems for scoring and feedback during weapons training exercises.

IR/DRTS – Instrumented Ranges/Digital Range Training System

A combination of instrumented ranges and digital range training systems for comprehensive weapons training.

IR/UV – Infrared/Ultraviolet

Technologies or sensors that operate in the infrared and/or ultraviolet spectra.

IRCM – Infrared Countermeasures

Techniques or equipment used to counteract threats that use infrared technology.

IS – Instrumentation System

A collection of instruments used for measuring, monitoring, or managing a particular system or process.

ISD – Instructional System Design

A process for designing effective and efficient instruction.

ISS – Independent Suspension System

A type of vehicle suspension that allows each wheel on the same axle to move vertically independently of the others.

ISS – Instruction Support System

A system that provides support to instruction or training processes.

ISTF – Installed Systems Test Facilities

Facilities equipped with systems and equipment for conducting tests on installed systems.

I&T – Integration and Test

A phase in systems engineering where the system components are integrated and tested to ensure they work together as a whole.

ITAS – Improved Target Acquisition System

A system used to enhance the ability to acquire and engage targets.

ITE – Integrated Training Environment

A training environment that integrates multiple training methods and systems.

ITF – Integrated Threat Force

A group of simulated threats integrated into a training scenario.

ITS – Independent Target System

A target system that operates independently of other systems.

IVA – Instructional Visual Aid

Visual materials used to aid instruction, such as diagrams, charts, or videos.

IW – Irregular Warfare

Warfare that is not conducted according to traditional or standard tactics, strategies, or battlegrounds.


JAGM – Joint Air to Ground Munition

A U.S. military program to develop an air-to-ground missile system.

JC3IEDM – Joint Consultation, Command, and Control Information Exchange Data Model

A data model used in military command and control systems for the exchange of information.

JCAS – Joint Close Air Support

Air action by fixed-wing and rotary-wing aircraft against hostile targets that are in close proximity to friendly forces.

JCATS – Joint Conflict and Tactical Simulations

A family of models and simulations used to train military commanders and staffs in joint and multinational warfare.

JCR–Log – Joint Capabilities Release–Logistics

A logistic-specific variant of the Joint Capabilities Release, a software that supports military operations.

JCW – Joint and Coalition Warfighting

Refers to the coordination and operation of military forces from multiple countries or agencies.

JDIF – Joint Development Integration Facility

A facility where different systems or technologies are integrated and developed jointly.

JFETS – Joint Fires and Effects Trainer System

A simulation-based system for training in joint fires and effects.

JFO – Joint Fires Observers

Military personnel trained to direct the action of combat aircraft engaged in close air support and other offensive air operations.

JFPL – Joint Fires Product Line

A series of products or systems related to joint fires.

JIIM – Joint, Interagency, Intergovernmental, and Multinational

An acronym used to describe a comprehensive approach to operations that includes elements from multiple departments or countries.

JITC – Joint Interoperability Test Command

A command responsible for testing the interoperability of military systems.

JLCCTC – Joint Land Component Constructive Training Capability

A training capability designed for land component commanders and staffs.

JLENS – Joint Land Attack Cruise Missile Defense Elevated Netted Sensor System

A system designed to detect, track, and engage aerial threats such as cruise missiles.

JLTV – Joint Light Tactical Vehicle

A family of vehicles designed to replace many of the U.S. military’s High Mobility Multipurpose Wheeled Vehicle (HMMWV).

JMRC – Joint Multinational Readiness Center

A military training center designed to prepare forces for multinational operations.

JMTC – Joint Multinational Training Center

A center focused on providing training for joint and multinational operations.

JPMRC–IS – Joint Pacific Multinational Readiness Capability–Instrumentation System

An instrumentation system used in the Joint Pacific Multinational Readiness Capability, which trains forces for operations in the Pacific region.

JRTC – Joint Readiness Training Center

A combat training center that provides realistic joint and combined arms training.

JSAF – Joint Semi–Automated Forces

A simulation system used for training and mission rehearsal.

JTAC – Joint Terminal Attack Control

Trained service members who direct the action of combat aircraft in close air support and other offensive air operations.


KBSC – Korea Battle Simulation Center

A simulation center located in South Korea that provides training and mission rehearsal for military forces, particularly focusing on the unique strategic and operational environment of the Korean Peninsula.


LAN – Local Area Network

A network system that connects computers and devices in a limited geographical area such as a home, school, office building, or closely positioned group of buildings.

LASER – Light Amplification by Stimulated Emission of Radiation

A device that stimulates atoms or molecules to emit light at particular wavelengths and amplifies that light, typically producing a very narrow beam of radiation.

LAV – Light Armored Vehicles

Military vehicles designed for reconnaissance and infantry support roles, offering a balance between firepower, protection, and mobility.

LBA – Longbow Apache

A variant of the Apache helicopter, equipped with the Longbow radar, which can scan large areas, detect, and prioritize multiple targets.

LCCS – Life Cycle Contract Support

A support system that manages a product’s development from its design to its final delivery and disposal.

LCPM – Life Cycle Product Line Management

The process of managing the complete lifecycle of a product from its inception, through its engineering design and manufacture, to its service and disposal.

LCT – Longbow Crew Trainer

A training system for Longbow Apache helicopter crews, designed to improve skills and mission readiness.

LFM – Live Fire Modernization

An approach that aims to improve and enhance live-fire training capabilities and technologies.

LLDR – Lightweight Laser Designated Rangefinder

A portable device used to mark or designate a target with a laser to guide precision munitions.

LMS – Learning Management System

A software application for the administration, documentation, tracking, reporting, and delivery of educational courses or training programs.

LOMAH – Location Of Miss And Hit

A system used in live-fire training to precisely calculate the location of a round’s impact.

LR – Liaison Representative

An individual who establishes and maintains communication between different organizations or units in order to ensure mutual understanding and cooperation.

LRU – Line Replaceable Unit

A modular component of an aircraft or electronic system designed to be replaced quickly at an operating location.

LT2 – Live Training Transformation Product Line

A product line that includes systems and technologies designed to transform live training exercises for military forces.

LT2–FTS – Live Training Transformation Family of Training Systems

A collection of training systems that fall under the Live Training Transformation (LT2) product line.

LTEC – Live Training Engagement Composition

A technology that supports the design and execution of live training scenarios and exercises.

LUH – Light Utility Helicopter

A class of helicopters that are lighter and more compact, typically used for transport, search and rescue, and other utility roles.

LVC – Live, Virtual and Constructive

A training approach that integrates live, virtual, and constructive elements into a seamless training environment.

LVCG – Live, Virtual, Constructive and Gaming

An extension of the LVC concept that adds gaming elements to enhance the training experience.

LVC–IA – Live, Virtual, Constructive–Integrating Architecture

A system architecture that enables the integration and interoperability of live, virtual, and constructive training components.

LVC–ITE – Live, Virtual and Constructive–Integrated Training Environment

A training environment that blends real-world and simulated entities to create a comprehensive, effective, and immersive training experience.


MANPADS – Man–Portable Air Defense System

A type of missile launcher that is light enough to be carried and fired by a single person.

MAST – Man–Portable Aircraft Survivability Trainer

A training system designed to increase the survivability of aircraft by training crewmembers in threat identification and reaction procedures.

MATV – MRAP All Terrain Vehicle

A type of Mine Resistant Ambush Protected vehicle that is designed to withstand improvised explosive device (IED) attacks and ambushes, specifically designed for all-terrain mobility.

MC – Mission Command

The exercise of authority and direction by the commander using mission orders to enable disciplined initiative within the commander’s intent to empower agile and adaptive leaders in the conduct of joint unified land operations.

MC – Mortar Carrier

A type of vehicle that is designed to carry and support a mortar crew.

MCA – Mission Command Adapter

A technology that allows systems to interoperate and share data in a mission command setting.

MCNITR – Mobile Commercial Network Infrastructure Test Range

A mobile test environment for assessing and evaluating commercial network technologies.

MCS – Mission Command System

A system that integrates personnel, procedures, and technology to support the commander’s conduct of operations.

MCTC – Maneuver Combat Training Center

A training facility that is specifically designed for practicing maneuver combat tactics and procedures.

MCTC–IS – Maneuver Combat Training Center–Instrumentation System

The system of sensors and other equipment used to monitor and assess performance at a Maneuver Combat Training Center.

MDA – Milestone Decision Authority

The designated individual with overall responsibility for a program. The MDA has the authority to approve entry of an acquisition program into the next phase.

MDD – Materiel Development Decision

A decision made by the acquisition authority regarding the feasibility of a potential materiel solution to meet a specific military requirement.

MDI – Miss Distance Indicator

A device that measures the distance by which a projectile or missile misses its target.

MDMP – Military Decision Making Process

A United States Army seven-step process for military decision-making in both tactical and garrison environments.

MEADS – Medium Extended Air Defense System

A next-generation air and missile defense system intended to replace the Patriot missile system.

MET – Mine Resistant Ambush Protected Egress Trainer

A training tool designed to simulate the challenges soldiers might face while exiting a rolled or flipped MRAP vehicle.

MFVP – Multifunction Vehicle Port

A port on a vehicle that provides various capabilities such as power, data, and video connections.

MGS – Mobile Gun System

A wheeled armored vehicle with a large-caliber gun designed for infantry support.

MGT – Mobile Ground Targets

Moving targets used in military training exercises.

MGTH – Mobile Ground Target Hardware

The hardware components of mobile ground targets, which might include mechanisms for movement, target images, or sensors for scoring hits.

MGTO – Mobile Ground Target Operations

The operations involved in deploying, controlling, and assessing mobile ground targets during military training.

MHz – Megahertz

A unit of frequency of one million cycles per second.

MI – Military Intelligence

Information that has been collected and analyzed for use in military planning.

MIBT – Multi–echelon Integrated Brigade Training

A type of training that integrates different levels (echelons) of command within a brigade for a unified training experience.

MILES – Multiple Integrated Laser Engagement System

A system used by the military for training, it uses lasers and blank cartridges to simulate actual battle.

MIL STD – Military Standard

A standard established by the U.S. Department of Defense for various processes, procedures, practices, and designs.

MIST – Military Intelligence Support to Target

The use of military intelligence to aid in the identification and selection of targets.

MITAS – Modified Improved Target Acquisition System

A system that improves upon an existing target acquisition system, generally by enhancing its performance or extending its capabilities.

MITS – Mobile Independent Target System

A target system that is both mobile and capable of operating independently of other systems.

MLRS – Multiple Launch Rocket System

A type of rocket artillery system that can fire multiple rockets at different targets simultaneously.

MMPV – Medium Mine Protected Vehicle

A vehicle that offers protection against mines and is of medium size and weight, usually used for patrol, convoy escort, and other such tasks.

MOBILE MOUT – Mobile Military Operations on Urban Terrain

A training set-up that is mobile and can be moved to different locations for conducting Military Operations on Urban Terrain (MOUT) training.

MOS – Military Occupational Specialty

The US military’s term for the various jobs available to its personnel.

MOU – Memorandum Of Understanding

An agreement between two (bilateral) or more (multilateral) parties expressed in broad terms of understanding.

MOUT – Military Operations on Urban Terrain

A term used by the military, especially the United States military, to describe combat in urban areas.

MPCV – Mine Protected Clearance Vehicle

A type of vehicle that is specially designed to clear areas of mines while protecting the personnel inside.

MPRC – Multipurpose Range Complex

A training range that can accommodate multiple types of training exercises and drills.

MRAP – Mine Resistant Ambush Protected

A term for a type of armored vehicle that is designed to withstand improvised explosive device (IED) attacks and ambushes.

MRF – Multi–Resolution Federation

A simulation approach that allows different parts of the simulation to operate at different levels of detail or resolution.

MRT – Maintenance Release Test

A test performed after maintenance or repair to verify that the system or equipment is functioning correctly.

MRXs – Mission Rehearsal Exercises

Training exercises designed to rehearse a mission before it is actually carried out.

M&S – Modeling and Simulation

A technology that uses models, including emulators, prototypes, simulators, and stimulators, either statically or over time, to develop data as a basis for managerial or technical decision making.

MSAT – Medium Speed Aerial Target

A target drone that can fly at medium speeds for use in testing and training.

MSDE – Military Simulation Development Environment

A software environment used for developing military simulations.

MSDL – Military Scenario Development Language

A language used for developing scenarios for military simulations.

MSMODIM – Modular SMart On–board Data Interface Module

A module used for interfacing with the data systems on a smart vehicle or other equipment.

MSTCs – Medical Simulation Training Centers

Training facilities where medical personnel can practice their skills using simulations of medical situations.

MTC – Medium Tactical Vehicle

A classification of military vehicles that are larger than a Humvee but smaller than a large truck.

MTC – Mission Training Complex

A training facility where military personnel can practice missions using a variety of training technologies.

MTF – Mobile Training Facility

A training facility that can be moved from location to location as needed.

MTRS – Man Transportable Robotic Systems

Robotic systems that are small and light enough to be carried and operated by a single person.

MTS – Maintenance Training System

A system designed to train personnel in the maintenance of specific equipment or systems.

MV – MRAP Variant

A specific version or design of a Mine Resistant Ambush Protected vehicle.

MWS – Missile Warning System

A system designed to detect and warn of incoming missiles.


NCM3 – Non–Rated Crew Member Manned Module

A module that is designed to be manned by crew members who are not rated, typically referring to crew members who do not have pilot or co-pilot qualifications.

NCO – Noncommissioned Officer

A military officer who has not been commissioned. In the US military, this term refers to an enlisted member who has been given authority by a commissioned officer.

NeMC – Network Enable Mission Command

A command system that uses network technology to enable more efficient mission execution.

NET – New Equipment Training

Training provided for the operation, maintenance, and support of new, modified, or upgraded equipment or systems.

NETCM – Nuclear Effects Test Capability Modernization

A program to modernize the capability to test the effects of nuclear weapons.

NETT – Network Exploitation Test Tool

A tool used to test the vulnerability and performance of a network.

NGB – National Guard Bureau

The federal agency that oversees the United States National Guard.

NIE – Network Integration Evaluation

An event that tests and evaluates new network and command systems in a realistic operational environment.

NIE – Network Integration Event

An event where different network systems are brought together to evaluate their integration and interoperability.

NIPRNet – Non–classified Internet Protocol Router Network

The network that is used for transmitting sensitive but unclassified information between the Department of Defense users.

NPCs – Non–Player Characters

In the context of military training simulations, these would be characters controlled by the computer rather than by human players.

NSPA – NATO Support Agency

An agency responsible for providing integrated multinational support solutions for its stakeholders.

NSTD – Non–System Training Device

A training device that does not constitute a system but is used for training purposes nonetheless.

NTC – National Training Center

A major training area for the United States military, located in the Mojave Desert in California.

NVDs – Night Vision Devices

Devices that allow the user to see in low-light or night-time conditions.

NVESD – Night Vision and Electronics Sensors Directorate

A research and development group within the U.S. Army focused on developing new technologies related to night vision and electronic sensors.

NVIG – Night Vision Image Generator

A device or system that generates images replicating night vision for training or simulation purposes.


OCCS – Observer Controller Communications System

A system used to facilitate communication among observer controllers during training exercises.

OCONUS – Outside Continental United States

A term used in the U.S. military to refer to any area outside the 48 contiguous states and the District of Columbia.

OC/T – Observer–Controller/Trainer

Personnel who observe and control training exercises and also provide instruction and feedback to the participants.

ODS–SA – Operation Desert Storm–Situational Awareness

A program or initiative focused on learning from or improving upon the situational awareness capabilities used during Operation Desert Storm.

OE – Operating Environment

The set of conditions—physical, political, legal, economic, social, technological—that influence the operations of an organization or system.

OIPT – Overarching Integrated Product Team

A team composed of representatives from various functional areas that oversees and coordinates the development of a product or system across its entire life cycle.

OneSAF – One Semi–Automated Forces

A computer-based simulation tool used for training, analysis, and acquisition in land-based operations.

OneTESS – One Tactical Engagement Simulation System

An integrated system designed to support tactical engagement simulation for training exercises.

OPFOR – Opposing Forces

In military training exercises, the forces that oppose the “friendly” forces, typically to provide a realistic simulation of enemy combatants.

OPLAN – Operational Language

A plan for a single, extensive operation or campaign.

OSD – Office of the Secretary of Defense

The office that provides support to the Secretary of Defense in the management and direction of all matters regarding the Department of Defense.

OSWV – Opposing Forces Surrogate Wheel Vehicle

A vehicle used to simulate enemy vehicles in training exercises.

OT – Operational Test

A test conducted to determine whether systems or components are suitable for their intended operational use.


PAGTS – Platoon Advanced Gunnery Training System

A system used for advanced gunnery training at the platoon level.

PD CSS – Project Director Constructive Simulation Support

The director overseeing support for constructive simulations in a project.

PdM CTIS – Product Manager Combat Training Instrumentation Systems

The product manager responsible for combat training instrumentation systems.

PdM DT – Product Manager Digitized Training

The product manager responsible for digitized training products or systems.

PdM GCTT – Product Manager Ground Combat Tactical Trainers

The product manager responsible for ground combat tactical trainers.

PdM LTS – Product Manager Live Training Systems

The product manager responsible for live training systems.

PdM MCTS – Product Manager Maneuver Collective Training Systems

The product manager responsible for maneuver collective training systems.

PdM MEDSIM – Product Manager Medical Simulation

The product manager responsible for medical simulation products or systems.

PdM STS – Product Manager Special Operations Forces Training Systems

The product manager responsible for training systems designed for Special Operations Forces.

PdM WTI – Product Manager Warrior Training Integration

The product manager responsible for integrating various warrior training initiatives, products, or systems.

PDR – Preliminary Design Review

A review conducted to evaluate the progress, technical adequacy, and risk resolution of the selected design approach for one or more configuration items.

PDSS – Post Deployment Software Support

Support provided to software systems after they have been deployed.

PEO GCS – Program Executive Office Ground Combat Systems

The office responsible for overseeing ground combat systems programs.

PEO IEW&S – Program Executive Office for Intelligence, Electronic Warfare & Sensors

The office responsible for overseeing intelligence, electronic warfare and sensors programs.

PEO STRI – Program Executive Office Simulation, Training and Instrumentation

The office responsible for overseeing simulation, training, and instrumentation programs.

PFED – Pocket–sized Forward Entry Device

A portable device used for data input and retrieval in the field.

PGS – Prompt Gamma Simulator

A device or system used to simulate prompt gamma radiation for training or research purposes.

PGTS – Precision Gunnery Training System

A system used for precision gunnery training.

PLA – Program Level Agreement

A document that defines the agreed-upon services to be provided by one department to another within an organization.

PM ITE – Project Manager Integrated Training Environment

The project manager responsible for the integrated training environment.

PM ITTS – Project Manager Instrumentation, Targets and Threat Simulators

The project manager responsible for instrumentation, targets, and threat simulators.

PM MRAP – Program Manager Mine Resistant Ambush Protected

The program manager responsible for the Mine Resistant Ambush Protected vehicle program.

PM SBCT – Product Manager Stryker Brigade Combat Team

The product manager responsible for the Stryker Brigade Combat Team.

PM TRADE – Project Manager Training Devices

The project manager responsible for training devices.

POC – Primary Operating Center

The main location where a specific operational activity is conducted.

POI – Program of Instruction

A detailed outline of the training to be conducted for a particular program or course.

POM – Program Objective Memorandum

A U.S. Department of Defense document that summarizes the funding requirements for existing and proposed programs over a period of several years.

PoN – Point–of–Need

The location where a specific product or service is required.

POR – Program of Record

An acquisition program that has been approved and funded by the Department of Defense.

PTS – Precision Target Signature

A unique or distinguishing pattern or set of data that identifies a target with precision.

PTTs – Part–Task Trainers

Training devices or systems that are used to train individuals on a specific task or subset of tasks.


QAR – Quality Assurance Representative

An individual who is responsible for ensuring that products or services meet established quality standards. They typically oversee testing and inspections processes, identify quality issues, and implement corrective actions.

QRC – Quick Reaction Capabilities

These are capabilities developed to meet urgent operational needs. Quick reaction capabilities are typically designed to address a gap in functionality or performance, and are developed and fielded in a faster time frame than traditional acquisition programs.


RATO – Rocket Assisted Take–Off

A system installed in a vehicle, often an aircraft, to provide additional thrust in taking off.

RCS – Radar Cross Section

A measure of how detectable an object is with a radar. A larger RCS indicates that an object is more easily detected.

RCS – Range Communication System

Communication systems used within a specific range or area, often in military or training operations.

RCTD – Reconfigurable Collective Training Devices

Training devices that can be reconfigured for various collective training scenarios.

R&D – Research and Development

The work a business conducts toward the innovation, introduction, and improvement of its products and procedures.

RDECOM – Research Development Engineering Command

A major subordinate command of the U.S. Army Futures Command that conducts research and development of new technology for the Army.

RETS/ERETS – Remote Target System/Enhanced Remote Target System

Systems used in training exercises that remotely control targets for practice and evaluation purposes.

RF – Radio Frequency

A rate of oscillation in the range of about 3 kHz to 300 GHz, which corresponds to the frequency of radio waves, and the alternating currents which carry radio signals.

RFI – Request For Information

A formal process for gathering information from potential suppliers of a good or service.

RFM – Radio Frequency Module

A component in a device used to communicate with other devices wirelessly.

RFP – Request For Proposal

A business document that announces a project, describes its needs, and asks for detailed proposals from vendors who are interested in bidding for the project.

ROC – Range Operation Control

The command and control center for a specific range or field of operation.

RPVT – Remotely Piloted Vehicle Target

A remote-controlled unmanned vehicle used as a moving target for training or weapons testing.

R&R – Rest and Recuperation

Periods of time that soldiers spend away from combat, often in a more peaceful or safe area, to rest and recover.

RRS – Radar Rocket Scoring

A system used to score the accuracy of rockets using radar data.

RTI – Run–Time Infrastructure

A software infrastructure designed to support the execution of computer simulations that are distributed over multiple computers.

RVTT – Reconfigurable Vehicle Tactical Trainer

A training system that allows for the simulation of a variety of different vehicle scenarios.

RWS – Remote Weapons System

A remotely operated weapons platform that can be installed on an air, land, or sea vehicle.


SA – Situational Awareness

The perception of environmental elements with respect to time or space, the comprehension of their meaning, and the projection of their future status.

SAF – Semi–Automated Forces

Computer-generated forces or entities used in training and simulation.

SAL – Semi–Active Laser

A type of laser-guided bomb that relies on a reflected laser signal to hit a target.

SAM – Surface–to–Air Missiles

A missile designed to be launched from the ground to destroy aircraft or other missiles.

SAT – Small Arms Transmitter

A device used in military training simulations to record hits and misses during small arms engagements.

SATO – Stand-alone Authority to Operate

A permission granted to a specific system to operate independently, often in a military context.

SBIR – Small Business Innovation Research

A U.S. government program that helps small businesses conduct research and development.

SBT – Skill Based Training

Training that focuses on the development of specific skills, rather than theoretical knowledge.

SBUDs – Simulation Block Updates

Updates or upgrades made to a simulation software or system, often released in “blocks” or groups.

SCT – Shadow Crew Trainer

A training simulator used to train crews of the Shadow unmanned aerial vehicle.

SCWS – Stabilized Commanders Weapon Station

A type of weapon station that uses gyroscopes to remain stable, often used in military vehicles.

SDB II – Small Diameter Bomb II

A precision-guided bomb that is part of the U.S. Air Force’s weapons inventory.

SE – Synthetic Environment

A computer simulation that represents activities at a high level of realism.

SE Core – Synthetic Environment Core

The central part or “core” of a synthetic environment, which typically contains the main functionality and data.

SEPv2 – System Enhancement Package version 2

A second version or update of a system enhancement package.

SFAS – Special Forces Assessment and Selection

The process used by U.S. Army Special Forces to evaluate and select candidates for Special Forces training.

SFTS – Synthetic Flight Training Simulator

A flight simulator used for pilot training that creates a synthetic or artificial flying environment.

SH – Shoot House

A facility used for training military and law enforcement personnel in close-quarters combat scenarios.

SIGINT/DF – Signal Intelligence and Direction Finding

The process of interpreting signal data for intelligence purposes and the use of specialized systems to locate the sources of signal emissions.

SIMCI – Simulation to Mission Command Interoperability

A process or system for ensuring that simulation systems can interact effectively with mission command systems.

SIM/STIM – Simulation/Stimulation

The process of creating a synthetic environment or event to stimulate learning or problem-solving.

SINCGARS – Single Channel Ground and Airborne Radio System

A combat net radio used by U.S. and allied military forces for secure voice and data communication.

SIPRNet – Secret Internet Protocol Router Network

A system of interconnected computers used by the U.S. Department of Defense and the U.S. Department of State to transmit classified information.

SLM–BDM – Shoulder Launched Munitions–Bunker Defeat Munitions

Specific types of munitions designed to be launched from the shoulder and used to defeat fortified structures.

SLOC – Source Lines of Code

A software metric used to measure the size of a computer program by counting the number of lines in the text of the program’s source code.

SMDC – Space and Missile Defense Command

A specialized command within the U.S. Army that is responsible for space and missile defense operations.

SME – Subject Matter Expert

An individual who exhibits the highest level of expertise in performing a specialized job, task, or skill.

SMODIM – SMart Onboard Data Interface Module

A type of electronic module used to interface with and process data onboard a vehicle or system.

SMS – Soldier Monitoring System

Systems used to monitor various aspects of a soldier’s status, such as health, location, and operational status.

SOA – Service Oriented Architecture

A style of software design where services are provided to the other components by application components, through a communication protocol over a network.

SOA CMS – Special Operations Aviation Combat Mission Simulator

A simulator used to train pilots for combat missions in special operations aviation.

SOAR (A) – Special Operations Aviation Regiment (Airborne)

A special operations force of the U.S. Army that provides helicopter aviation support for general purpose forces and special operations forces.

SOCOM – United States Special Operations Command

The unified combatant command charged with overseeing the various Special Operations Component Commands of the Army, Air Force, Navy and Marine Corps of the United States Armed Forces.

SOF – Special Operations Forces

Military units that are specially trained, equipped, and organized to conduct special operations.

SOFRANGES – Special Operations Forces Range Upgrades

Improvements or enhancements made to training ranges used by Special Operations Forces.

SOFTEAMS – Special Operations Forces Training, Engineering and Maintenance Support

Support services provided for the training, engineering, and maintenance needs of Special Operations Forces.

SOFTES – Special Operations Forces Training and Exercise Support

Support services provided for the training and exercise needs of Special Operations Forces.

SOPs – Standard Operating Procedures

Set of step-by-step instructions compiled by an organization to help workers carry out complex routine operations.

SRP – Sustainable Range Program

A program aimed at ensuring the sustainability of military training ranges, balancing operational requirements with environmental stewardship.

S&S – Service and Support

Common term for the services and support provided to customers before, during, and after the purchase of a product.

SS – Soldier Systems

Refers to the individual systems and equipment used by soldiers.

S&T – Science and Technology

A broad term encompassing scientific research and technological development activities.

STE – Synthetic Training Environment

An artificial environment created for the purpose of training individuals or groups in various skills or tasks.

STIL – System Test and Integration Laboratory

A laboratory used for testing and integrating various systems, often in a controlled environment.

STRAC – Standards In Training Commission

An Army organization responsible for determining the Army’s training strategy, developing training and education concepts, and aligning the training enterprise with Army priorities.

STS – Special Operations Forces Training Systems

Training systems specifically designed for use by Special Operations Forces.

STS – Stryker Tow Simulator

A simulator used for training on the Stryker, a family of eight-wheel-drive combat vehicles.

SUAS – Small Unmanned Aerial System

A category of unmanned aerial vehicles (UAVs) that are smaller and often simpler than their full-sized counterparts.

SUPT – Specialized Undergraduate Pilot Training

An intensive training program for aspiring pilots in the U.S. Air Force.

SV – Stryker Variant

A specific type or model of the Stryker vehicle, which may have unique capabilities or modifications.


TAC – Terminal Attack Control

The authority to control the maneuver of and grant weapons release clearance to attacking aircraft.


A device related to the TOW (Tube-launched, Optically tracked, Wire-guided) missile system.

TADSS – Training Aids, Devices, Simulators, and Simulations

Tools and technologies used in military training, including physical models, simulators, and virtual environments.

TAF – Training Analysis and Feedback

The process of reviewing and analyzing the effectiveness of training, and providing feedback for improvement.

TBD – To Be Determined

An acronym commonly used to denote that certain details are not yet decided or available.

TC – Training Circular

A type of publication used by the military to provide instructions and information related to training.

TCC – Technical Control Cell

A unit or team responsible for technical control and coordination.

TCC – Test Control Centers

Facilities from where testing activities are monitored and controlled.

TCS – Target Control System

A system used to control and coordinate the engagement of targets.

TDB – Terrain Database

A collection of geographic data used in simulations and other systems to represent the physical environment.

T&E – Test and Evaluation

The process of testing and evaluating the performance of a system, product, or service.

TENA – Test and Training Enabling Architecture

A software architecture designed to enable interoperability among range systems, simulations, and command and control systems in a testing and training context.

TESS – Tactical Engagement Simulation System

A system used to simulate combat engagements for training purposes.

T&E/S&T – Test and Evaluation, Science and Technology

The intersection of testing and evaluation methods with scientific and technological developments.

TEV – Tank Engineering Variant

A specific version or modification of a tank, often designed for engineering purposes.

TFPS – Transportable Flight Proficiency Simulator

A portable flight simulator used to maintain and improve pilots’ proficiency.

TGS – Tactical Ground Station

A ground-based station used for tactical operations, often involving communication or control systems.

TLD – TOW Laser Device

A device related to the TOW (Tube-launched, Optically tracked, Wire-guided) missile system that uses lasers.

TLOs – Training Learning Objectives

The desired outcomes or goals of a training session, often defined in terms of the knowledge or skills participants should acquire.

TMDE – Test Measurement and Diagnostic Equipment

Equipment used to test, measure, and diagnose the performance and condition of other equipment or systems.

TMO – Targets Management Office

An office responsible for managing the use of targets in military training or operations.

TOC – Tactical Operation Center

The primary location from where military commanders coordinate tactical operations.

TOW – Tube–launched, Optically–tracked, Wire–guided

A type of anti-tank missile that is launched from a tube, tracked optically, and guided by a wire connected to the launcher.

TRACR – Targetry Range Automated Control and Recording

A system used to automate the control and recording of activities on a target range.

TRADOC – United States Army Training and Doctrine Command

A command of the U.S. Army responsible for establishing training requirements and developing doctrine.

TRIOSS – Training Instructor/Operator Services Support

Support services for training instructors and operators, often including things like logistics, maintenance, and technical support.

TRISA – TRADOC Intelligence Support Activity

An activity within TRADOC responsible for providing intelligence support.

TRL – Technology Readiness Level

A measure used to assess the maturity of evolving technologies, from the concept stage to full deployment.

TRMC – Test Resource Management Center

A center responsible for coordinating and managing the resources used in testing activities.

TRR – Test Readiness Review

A formal review process used to determine if a system is ready for testing.

TSIJ – Threat Signal Injection Jammer

A device used to jam threat signals, often used in electronic warfare.

TSMO – Threats Systems Management Office

An office responsible for managing systems designed to counter threats.

TSSC – Training Systems Support Center

A center responsible for providing support for training systems.

TTPs – Tactics, Techniques, and Procedures

Standard procedures and practices used by military forces to accomplish specific tasks or missions.

TUL – Targetry Range Automated Control and Recording Ultra Lite

A lightweight version of a system used to automate the control and recording of activities on a target range.

TV – Tank Variant

A specific version or model of a tank, which may have unique capabilities or modifications.

TVS – Tactical Vehicle System

A system involving tactical vehicles, often including things like communication or navigation equipment.

TWV – Tactical Wheeled Variant

A variant of a tactical vehicle that uses wheels rather than tracks.


UAC – Urban Assault Course

A simulated urban environment designed for training military personnel in urban combat tactics and procedures.

UAP – Unified Action Partners

Entities, organizations, or nations that participate in unified action, the synchronization, coordination, and/or integration of the activities of governmental and nongovernmental entities with military operations to achieve unity of effort.

UAS – Unmanned Aerial System

An unmanned system which includes a ground-based controller, and a system of communications between the two. The drone itself is referred to as a UAV.

UAS–T – Unmanned Aircraft System–Target

An unmanned aircraft system that is used as a target for training or testing purposes.

UAV – Unmanned Aerial Vehicle

An aircraft that operates without a human pilot onboard. Also known as drones, UAVs can be remote-controlled or fly autonomously based on pre-programmed flight plans.

UGRG – Unit Gunnery Report Generator

A system or tool used to generate reports related to gunnery performance at the unit level.

UH – Utility Helicopter

A type of helicopter that is designed for general utility purposes, such as transport, search and rescue, and other missions.

UK CBRN – United Kingdom Chemical Biological Radiological and Nuclear

This refers to the UK’s defense and response capabilities in the areas of Chemical, Biological, Radiological, and Nuclear threats.

ULE – Unit Level Entity

Refers to a specific operational entity at the unit level in a military context, often in reference to simulations or models.

ULO – Unified Land Operations

A doctrine adopted by the US Army that involves the synchronization of efforts between different branches and elements of the military to achieve a unified goal on land operations.

UMTS – Universal Mobile Telecommunications Standard

A third-generation (3G) mobile cellular technology for networks based on the GSM standard.

USA – United States Army

The land service branch of the U.S. Armed Forces. It is one of the eight U.S. uniformed services and is designated as the Army of the United States in the U.S. Constitution.

USAACE – United States Army Aviation Center of Excellence

A major training facility of the United States Army, training military, civilian, international, and National Guard personnel in aviation maintenance, management, and operations.

USAICoE – United States Army Intelligence Center of Excellence

The U.S. Army’s school for professional training of military intelligence personnel located at Fort Huachuca, Arizona.

USAF – United States Air Force

One of the six service branches of the U.S. armed forces and one of the nation’s seven uniformed services. It provides aerial warfare capabilities.

USMC – United States Marine Corps

A branch of the United States Armed Forces responsible for providing power projection, using the mobility of the U.S. Navy to deliver combined-arms task forces rapidly.

USN – United States Navy

The naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States.

USSOCOM – United States Special Operations Command

The Unified Combatant Command charged with overseeing the various Special Operations Component Commands of the Army, Marine Corps, Navy, and Air Force of the United States Armed Forces.

USV-T – Unmanned Seaborne Vehicle-Target

An unmanned maritime vehicle used as a target for training or testing purposes.

UTM – Urban Training Module

A specific training component or module that focuses on urban operations.

UV – Ultraviolet

A type of electromagnetic radiation with wavelengths shorter than visible light but longer than X-rays. UV radiation is present in sunlight and can cause chemical reactions, and burns in living organisms.


VBS – Virtual Battlespace

A computer-based, interactive, three-dimensional simulation environment for military training and analysis. It allows users to experience a variety of military scenarios and events in a controlled virtual space.

VCM – Vehicle Control Module

A type of electronic control unit that manages various aspects of a vehicle’s performance such as engine operation, transmission, braking system, power steering, and other functions.

VCSA – Vice Chief of Staff of the Army

The principal deputy to the Chief of Staff of the Army, and acts as the Chief in his absence.

VCT – Video Creation Tool

A software or application used to create, edit, and produce videos.

VCTS – Virtual Clearance Training Suites

A simulated training environment used to train soldiers in clearing routes of improvised explosive devices (IEDs) and other hazards.

VDbs – Visual Databases

Collections of visual data (such as images or video) that are organized and stored in a way that facilitates efficient retrieval and analysis.

VE – Validation Event

An event designed to test or validate the performance, functionality, or effectiveness of a system, process, or program.

VHA – Veterans Health Administration

The component of the United States Department of Veterans Affairs (VA) that implements the healthcare program of the VA through the administration and operation of numerous VA outpatient clinics, medical centers, and healthcare systems.

VICTORY – Vehicular Integration for Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance/Electronic Warfare (C4ISR/EW) Interoperability

An initiative to establish a common architecture for C4ISR/EW systems integration on military vehicles.

VISMOD – Visual Modification

The practice of modifying vehicles, aircraft, or other military equipment to visually resemble enemy equipment for training purposes.

VMC – Visual Meteorological Conditions

Weather conditions in which visual navigation and control of an aircraft are possible. These are the opposite of instrument meteorological conditions (IMC).

VME – Virtual Military Equipment

Simulation or virtual representation of military equipment used for training and education purposes.

VMMD – Vehicular Mounted Mine Detector

A type of vehicle that is equipped with equipment for detecting mines or other explosive devices.

VMT – Virtual Maintenance Trainer

A computer-based training system that provides interactive, multimedia instruction on the maintenance of particular pieces of equipment or systems.

VOSS – Vehicle Optic Sensor System

A type of sensor system mounted on vehicles and used for surveillance, reconnaissance, and other purposes.

VPSS – Virtual Patient Simulation Systems

Interactive virtual systems that simulate patients for medical training purposes. These systems allow healthcare professionals to practice diagnosing and treating a wide range of medical conditions in a risk-free environment.


WAN – Wide Area Network

A network that spans a large geographic area, such as a city, state, or even an entire country. The internet is the largest WAN, spanning the entire Earth.

WARSIM – Warfighters Simulation

A large-scale, computer-based military simulation system used for training military leaders at the tactical, operational, and strategic levels.

WCCJ – Wideband Configurable Controlled Jammer

An electronic device used to jam enemy communications and radar signals across a wide band of frequencies.

W–CDMA – Wideband–Code Division Multiple Access

A method of digital communication used in wireless networks to allow multiple users to share the same frequency band by assigning each user a unique code.

WCLS – Worldwide Contractor Logistics Support

A service provided by defense contractors to support the logistics needs of military operations around the world.

WESS – Weapon Effects Simulation System

A system that simulates the effects of weapons in training exercises, including the sounds, flashes, and other sensory effects.

WFF – WarFighter FOCUS

A U.S. Army training program aimed at improving the readiness of combat units through immersive, realistic training scenarios.

WfF – Warfighting Functions

The six primary functions in the U.S. Army doctrine that commanders must carry out to achieve success on the battlefield: mission command, movement and maneuver, intelligence, fires, sustainment, and protection.

WFXs – Warfighter Exercises

Large-scale training exercises that aim to simulate the conditions and challenges of real-world military operations.

WITS – Wireless Independent Target System

A system that uses wireless technology to control targets in military training exercises.

WP – Weapons Processor

A type of computer system used in military applications to process data related to weapons systems.

WSMR – White Sands Missile Range, New Mexico

The largest military installation in the U.S., used for testing a wide variety of weapons systems, including missiles and artillery.

WTI – Weapons and Tactics Instruction

A type of military training focused on the effective use of weapons and the implementation of tactics in combat situations.

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Reza Rafati https://cyberwarzone.com

Reza Rafati, based in the Netherlands, is the founder of Cyberwarzone.com. An industry professional providing insightful commentary on infosec, cybercrime, cyberwar, and threat intelligence, Reza dedicates his work to bolster digital defenses and promote cyber awareness.

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