1LT – First Lieutenant (US Army)

1st Lt  or 1Lt – First Lieutenant (USAF)

2d Lt or 2Lt – Second Lieutenant (USAF)

2LT – Second Lieutenant (US Army)

A/OA – observation aircraft

A2C2 – Army Airspace Command and Control

AA – Air Assault; Assembly Area

AAA – anti-aircraft artillery 

AAAV – advanced amphibious assault vehicle

AAR – after-action review/report

AAS - Ansar Al Sunna

AAS/AASAB-Ali al Saleem/Ali al Saleem Air Base, Kuwait

AASLT-Air Assault

ABE- Assistant Brigade Engineer

ABL – Ammunition Basic Load

ABM- anti-ballistic missile

ABN – airborne

ABT – airborne threat

AC, A/C – aircraft; air conditioning

ACA – Airspace control authority

ACCE – Air Component Command Element

ACDI-VOCA-Agricultural Cooperative Development-Volunteers in Overseas Cooperative Agreement.

ACE – air control element ; Analysis Control Element

ACERT – Army Computer Emergency Response Team

ACF – anti-coalition forces

ACM – Airspace control measure, air combat maneuvers

ACMR – Airspace control measure request

ACO – Airspace control order, airspace coordination order, air control order

ACOG – Advanced Combat Optical Gunsight

ACOTA- African Contingency Operations and Assistance

ACP – Airspace control plan, air control points, ammunition control point

ACR - armored cavalry regiment

ACSA – acquisition cross service agreement

AD – air defense

ADA – air defense artillery

ADC-M – Assistant Division Commander – Maneuver

ADC-O – Assistant Division Commander – Operations

ADCON-administrative control

ADC-S – Assistant Division Commander – Support

ADOC - Area Defense Operations Center (see BDOC)

ADVON-Advanced Echelon Element

AE – aeromedical evacuation

AEF – air expeditionary flight; Aerospace Expeditionary Force

AEG – air expeditionary group

AES – air expeditionary squadron

AEV- armored engineer vehicle

AEW – air expeditionary wing

AFFOR – Air Force Forces

AFI – Air Force Instruction (regulation)

AFO-Advanced Force Operations

AFOSI – Air Force Office of Special Investigation

AFP – Agence France-Presse

AFRAT-Air Force Radiation Assessment Team

AFRRI-Armed Forces Radiobiology Research Institute

AFSC – Air Force Specialty Code (see MOS)

AFSCOORD – Assistant Fire Support Coordinator

AFTAC-Air Force Technical Applications Center

AG – Adjutant General

AGL-Above Ground Level

AGM – air-to-ground missile (i.e., AGM-114); Attack Guidance Matrix

AH – attack helicopter

AI- air interdiction

AID – Agency for International Development

AIE – Anti-Iraqi Elements

AIF - Anti Iraqi Forces

AIT – air Intercept Training

AJ – Al Jazeera (Islamic newspaper)

AK – Automovat Kalashnikov (ex – AK-47)

ALOC – Administrative Logistics Operations Center

AMB – Air Mission Brief

AMC – Air Mobility Command

AMCM – Air Mission Coordination Meeting

AMDWS – Air missile defense work station

AMEMB – American Embassy

AMOUT – advanced military operations in urban terrain (CJSOTF)

AMR – Air mission request

AMZ - Abu-Mus'ab al-Zarqawi

ANFO – Ammonium Nitrate Fuel Oil

ANOSC – Army Network Operations and Security Center

AO – area of operations; action officer

AOA – Amphibious Operations Area

AOB – advance operating base (company-level HQ for CJSOTF)

AOI – area of interest

AOR – area of responsibility  

AP – anti-personnel (mine); Associated Press

APC – armored personnel carrier

APOD – Air Port of Debarkation

APOE – Aerial Port of Embarkation

APR, Apr – April

APT – Assessment Patrol Team 

AQ – Al Qaida

AQAM – Al Qaida and Associated Movements

AQIZ - Al Qa’ida in Iraq

AQSL – Al Qaida Senior Leadership 

AR – Army Regulation

ARCENT – U.S. Army Forces, U.S. Central Command

ARE – United Arab Emirates

ARFOR – Army Forces

ARM – (CJSOTF) advanced rifle marksmanship (see BRM)

ARSOC - Army Special Operations Component

ARSPACE – United States Army Space Command

AS – Ansar al-Sunna

ASC – Army Signal Command

ASCC – Army Service Component Command

ASI – Authorized Service Interruption; Addition Skill Identifier

ASO – Advanced Special Operations 

ASOS – Army Support to Other Services 

ASP – Ammo Supply Point

ASPB – Army Strategic Planning Board

ASR - alternate supply route (see MSR)

ASSLT – assault

AST – Advisory Support Team

ASV – armored support vehicle

ASW – Asymmetric Warfare

AT – anti-tank (mine); anti-terrorism; Assistance Team

AT/FP – anti-terrorism/force protection

ATA – automatic target acquisition

ATACMS – Army Tactical Missile System

ATARS – Advanced Tactical Air Reconnaissance System

ATK, ATTK - attack

ATO – air tasking order

ATOIC – Anti-Terrorism Operations Intelligence Cell (Army)

AUG, Aug – August

AUS - Australian

AVN - aviation

AWACS – Airborne Warning & Control System

AWT – Air weapon team (Apache)

AWTFA – Aerial weapons test flight area

B – billion (ex: $18B = $18,000,000); bomber

BADR Corps – Paramilitary Army of the Supreme Council for the Islamic Revolution in Iraq (SCIRI)

BAE – brigade aviation element

BAF – Bagram Air Field 

BAS – Basrah Air Station; basic allowance for subsistence

BAT – Border Assistance Team (see BTT) or biometric automated toolset

BATCON – Battalion Control

BAT-T – Battalion Augmentation Team -Training

BCCT – Baghdad Correction Confinement Facility

BCP -  Border Control Point 

BCT - brigade combat team (Army)

BDA – battle damage assessment

BDE – brigade

BDOC - Base Defense Operations Center (see ADOC)

BFA – battle focus area

BFT – blue force tracking; Blue Force Tracker

BFV – Bradley Fighting Vehicle

BG – Brigadier General (US Army)

BGE - brigade

BGen – Brigadier General (USMC)

BH&E – Building, Health and Education 

BHA – bomb hit assessment

BHR – Bahrain  ( country code) 

BIA – bomb impact assessment

BIAP – Baghdad International Airport

BIDS – Biological integrated Detection System

BIF - brigade interrogation facility

BIP – Blown In Place

BISA – Biometric Identification System for Access

BLDG, Bldg - building

Blue Forces – MNF (US & Coalition) forces

Blue-on-blue (attack) – MNF attacking other MNF accidentally

Blue-on-green (attack) – MNF attacking (friendly) Iraqi forces accidentally

Blue-on-White (attack) – MNF attacking civilian (neutral)

BLUF – bottom line up front

BM- 12 – 107mm Russian rocket

BMC – Battlefield Management Cell

BMF – bomb-making factory

BMM – bomb-making materials

BN – battalion

BOG – boots on ground

BOLO – be on look-out (for)

BOS – battlefield operating system

BP – Battle Position, Blocking Position

BPT – be prepared to

BPTD – Be Prepared to Deploy 

BR - MIST

BRAC - 

BRF – battalion reaction force (see QRF)

Brig Gen – Brigadier General (USAF)

BrigGen – Brigadier General (USMC)

BRM – (CJSOTF) basic rifle marksmanship (see ARM)

BSA – Brigade Support Area

BSD – Basic Source Data 

BSU – Base Support Unit

BTR – … (Russian-made APC)

BTT - Border Training Team

BTT – Border Transition Team

BUA – battle update assessment (brief)

BUB – Battle Update Brief

C – cargo; combined; coalition

C&S – cordon & search

C/JOA – Combined / Joint Operations Area

C1 – Personnel (J1)

C2 – command and control

C2 – Intelligence (J2)

C-23 – Sherpa airlift aircraft

C2PC – Command and Control Personal Computer

C3 – Operations (J3)

C3IC – Coalition Coordination, Communications, and Integration Center

C4 – Plans (J4)

C4I – Command, Control, Communications, Computers & Intelligence

C5 - … (J5)

C6 – Communications (J6)

C7 – Logistics (J7)

CA – civil affairs; counter attack

CAAT – Combined Arms Analysis Team

CAB – Combat Aviation Brigade

CAC – Combined Arms Center; Casualty Assistance Center

CACE – Coalition Analysis & Control Element

CACOM – Civil Affairs Command

CAG – commander’s action group; civil affairs group; carrier aviation group

CAHA – Captured Ammo Holding Area

CAKMS - Civil Affairs Knowledge System Management System

CAL – caliber

CALFEC – Combined Arms Live Firing Exercise 

CALL – Center for Army Lessons Learned

CAMO – Coalition Automation Management Office

CAN – Canada (country code)

CAO – combined area of operations

CAOC – Combined Air Operations Center, Current aviation operation center

CAP – Crisis Action Planning

Capt – Captain (USAF, USMC)

CAS – close air support

CASB – Commander’s Assessment Board

CAT – category; crisis action team; Civil Affairs Team

CAT-A – Civil Affairs Team A (CATB, CATC)

CATM – Civic Action Team 

CAV – cavalry

CBI – Central Bank of Iraq 

CBPS – Chemical Biological Protective Shelter 

CBRN - Chemical, Biological, Radiological, and Nuclear (Defense)

CC – Courtesy Copy; Carbon Copy

CCCC- Combatant Commander Central Command 

CCCI – Central Criminal Court of Iraq

CCIATL – Central Council for Iraqi and Arabic Tribe Leaders

CCIB – Command & Control Interoperability

CCIR – Commander’s Critical Intelligence Requirements

CCP – Casualty Collection Point 

CCSD – Command communications Service Designator

CCSO – CENTCOM Special Operations 

CDCIE – Cross Domain Collaborative Information Environment

CDE - Collateral Damage Estimate

CDI – Civil Defense Initiative

CDIED – Command Detonated Improvised Explosive Device 

CDM – Chemical Downwind Message

CDR – commander

CEA – captured enemy ammunition

CENTAF – U.S. Air Forces, U.S. Central Command

CENTCOM – Central Command

CENTRIXS – Combined (Coalition) Enterprise Regional Information Exchange System

CEO – Captured Enemy Ordnance 

CEOI – Communications-Electronic Operating Instructions

CERP – commander’s emergency relief program (funding)

CEXC - Combined Explosive Exploitation Cell (MNC-I ‘sexy’) 

CF - coalition forces

CFACC – Combined Forces Air Component Command

CFC – combined forces commander; Combined Federal Campaign

CFCI – Combined Forced Command Iraqi 

CFH – Contingency Forward Headquarters

CFLCC – Coalition (Combined) Forces Land Component Command

CFMCC – Coalition Forces Maritime Component Commander

CFSO – counter-intelligence force protection source operations

CFSOCC – Combined Forces Special Operation Component Command

CG – commanding general

CGIWD – Coast Guard Inland Waterways Division

CH – cargo helicopter

CHN- China ( country code)

CHOP – Change of Operations Control

CHOPS – chief of operations

CHRRP – Commander’s Humanitarian Relief/Reconstruction Projects

CHS – Combat Health Services

CI – counter-intelligence

CIACG – Coalition Interagency Coordination Group

CIAP – Command Intelligence Architecture/Planning Program

CID – Central Investigation Department/Division

CIDNE – Combined Information Data Network Exchange (pronounced like Sydney); SIGACTS database

CIDNE – Combined Information Data Network Exchange (pronounced like Sydney); SIGACTS database

CIED – counter-IED

CIF - Civil Intervention Force (ISF) (see POB & SPR)

CIG – Coalition Inspector General

CIIF – CINC In-Extremis Force

CIMIC – Civil Military Cooperation

CIMS - Civil Information Management System

CISB – Critical Incident Stress Briefing

Cit – Citizenship

CIV – Civilian

CIVIC – Campaign for Innocent Victims In Conflict

CJCCC – Combined Joint Command and Control Communications Center

CJCS – Chairman, Joint Chiefs of Staff

CJOC – coalition joint operations center

CJSOTF-AP – Combined Joint Special Operations Task Force – Arabia Peninsula

CJTF – Combined Joint Task Force; Coalition joint Task Force; Commander, Joint Task Force

CLP – combat logistics patrol

CLS – Combat Life Saver

CM – consequence management; collection management

CMAT – Civil Military Affairs team 

CMATT – Coalition Military Assistance Training Team

CME – Civil- Military Engineering

CMET – Counter Mortar Exploitation Team 

CMO – civil military operations (patrol); counter-mortar operations

CMOC – civil military operations center

CMOTF – Civil Military Operations Task Force

CNA – Computer Network Attack

CNE – Computer Network Exploitation

CNO – computer network operations

CO – company, Commanding Officer, Contracting Officer

COA - course of action (see MDCOA, MLCOA)

COAB – Campaign Objective Assessment Board 

COAX – Co-Axial

COB – Contingency Operating Base

COCOM – combatant command (command authority)

CODEL – congressional delegation (U.S.)

CoE or COE – Chief of Engineers (Army)

COG – Center of Gravity

COIC – Combined operations intelligence center

COIN – Counter-Insurgency

COL – Colonel (US Army), Contingency Operating Location

Col – Colonel (USAF, USMC)

COLISEUM – Common On-Line Intelligence System for End User and Management

COMCAM - combat camera

COMCAM - combat camera

COMPUSEC – Computer Security

COMSEC – Communications Security

COMSTAT – Communication Status Report

CONPLAN – Contingency Plan

CONUS – continental United States

COORD – coordination

COP – common operating picture

COS – Contingency Operating Site

CoS or COS – chief of staff

COSCOM – (13) Corps Support Command (US Army)

COSCOM CG – COSCOM Commanding General

COSQC- Central Office(organizational) For Standardization and Quality Control

CP - combined patrol; check point; choke point; collective protection; counter-proliferation; Command Post

CPA – Coalition Provisional Authority (replaced by U.S. Mission and IIG)

CPATT – Coalition Police Assistance Training Team

CPG – commander’s planning group

CPIC – Coalition Press Information Center

CPP – Convoy Protection Platform

CPS - Crown Prosecution Service

CPSE – corps PSYOP support element (see DPSE)

CPT – Captain (US Army)

CPX – Command Post Exercice

CQB – Close Quarters Battle 

CQC – close quarters combat

CRC – Control and reporting center, CONUS Replacement Center

CRE – Crisis Response Element 

CRG – Controlled risk Group 

CRP – combat reconnaissance patrol

CRRB – Combined Review & Release Board (detainees)

CS – Combat Support

CSB – corps support battalion

CSF – Central Security Force – Yemeni personnel trained by the British 

CSG – combat support group

CSH – Combat Support Hospital; Combat Surgical Hospital

CSI – Container Security Initiative

CSM – Command Sergeant Major

CSO – communications support office

CSOF – Coalition Special Operations Forces

CSS – Combat Service Support

CST – Coalition Support Team/ Combat Support Team 

CTAA – Consolidated transportation assembly area

CTC – Combat Training Center

CTCB – Combined Targeting Coordination Board

CTEP – Counter Terrorism Enhancement Program 

CTF – Counter Terrorism Force/ Centralized Training Facility 

CTG – Counter Terrorism Group 

CTR – Close Target Reconnaissance / Cooperative Threat Reduction 

CTWG – Combined Targeting Working Group 

CULT – Common User Land Transportation

CURROPS – current operations

CV – Aircraft Carrier

CVBG – Aircraft Carrier Battle Group

CVSG – Aircraft Carrier Strike Group

CW – chemical warfare; chemical weapons

CWG – Coalition Working Group

CWIED – Command wired IED

CWO – Chief Warrant Officer