F
- FAAD – Forward Area Air Defense
- FAAR – Forward Area Alerting Radar (US)
- FAARP – Forward Area Arming & Refueling Point
- FAASV – Field Artillery Ammunition Support Vehicle (US)
- FAC – Forward Air Control(er)
- FAC-A – Forward Air Control(er)-Airborne
- FACE – Field Artillery Computer Equipment
- FAL – Fusil Automatique Légère
- FAPDS – Frangible Armour-Piercing Discarding Sabot
- FARP – Forward Area Refueling Point
- FARS – field artillery rocket system
- FARV-A – Future Armored Resupply Vehicle - Artillery (US)
- FAST – Forward Area Support Team
- FAV – Fast Attack Vehicle (US)
- FBI – Federal Bureau of Investigation
- FBRV – Future Beach Recovery Vehicle (UK)
- FCC – Fire Command Centre
- FCC – Fire-Control Computer
- FCCVS – Future Close-Combat Vehicle System (US)
- FCE – fire-control equipment
- FCLV – Future Command and Liaison Vehicle (UK)
- FCS – fire-control system/subsystem
- FCS – Future Combat System
- FCU – Fire Control Unit
- FDC – fire direction centre
- FDCV – fire direction centre vehicle
- FDSWS – Future Direct Support Weapon System
- FEBA – Forward Edge of the Battle Area
- FEP – Firepower Enhancement Programme
- FET – Future Engineer Tank
- FFAR – Folding Fin Aerial Rocket
- FFE – Fire for Effect
- FFSS – Future Fighting Soldier System
- FG – field gun
- FH – field howitzer
- FIBUA – Fighting In Built-Up Areas
- FID – Foreign Internal Defenses
- FIFV – Future Infantry Fighting Vehicle (US)
- FIRM – Floating Integrated Rail Mount
- FIS – Fuze Interface System
- FISH – Fighting In Someone's House (UK) (Colloquial. Slang term for FIBUA)
- FIST – Future Integrated Soldier Technology (UK), Fire Support Team (US)
- FISTV – Fire Support Team Vehicle (US)
- FITOW – Further Improved TOW (US)
- FLEA – Frangible Low-Energy Ammunition (i.e. a fragmentation grenade or a low-yield IED)
- FLIR – forward-looking infra-red
- FLOT – forward line of own troops
- FLSW – Future Light Support Weapon
- FM – U.S. Army Field Manuals
- FM – Titanium tetrachloride (code designation)
- FMBS – Family of Muzzle Brake/Suppressors
- FMC – Food Machinery Corporation
- FMF – Fleet Marine Force
- FMJ – Full Metal Jacket
- FMJBT – Full Metal Jacket Boat Tail
- FMJLF – Full Metal Jacket Lead Free
- FMS – Foreign Military Sales
- FMTV – Family of Medium Tactical Vehicles
- FN – Fabrique Nationale (Manufacturer)
- FO – Forward Observer
- FOB – Forward Operating Base
- FOC – Full Operational Capability
- FOD – Foreign Object Damage (i.e., damage not caused by enemy fire. Includes bugs, dirt, etc.) (Aviation)
- FOG – Fibre Optic Gyro
- FOM – Fibre Optic Missile
- FOO – forward observation officer
- FORTIS – Forward Observation and Reconnaissance Thermal Imaging System
- FOTT – Follow On To TOW
- FOV – field of view
- FPA – Focal Plane Array
- FRAG – fragmentation
- FRAGO – FRAGmentary Order. (see OPORD)
- FRES – Future Rapid Effect System
- FROG – free rocket over ground
- FSCL – fire support coordination line
- FSCM – fire support coordination measure
- FSCV – fire support combat vehicle
- FSE – fire support element
- FSED – full-scale engineering development (US)
- FSSG – Force Service Support Group
- FST – Future Soviet Tank/Follow-on Soviet Tank
- FSV – fire support vehicle
- FSV – Future Scout Vehicle (US)
- FTA – Frangible Training Ammunition
- FTMA – Future Tank Main Armament
- FTS – Future Tank Study
- FTT – Field Tactical Trainer
- FUBAR – Fouled/Fucked Up Beyond All Reason/Recognition/Repair
- FUE – First Unit Equipped
- FUG – Felderitц Usу Gépkosci
- FV – fighting vehicle
- FV/GCE – fighting vehicle gun control equipment
- FVDD – Fighting Vehicle Development Division
- FVRDE – Fighting Vehicle Research and Development Establishment (UK)
- FVS – Fighting Vehicle System (US)
- FVSC – Fighting Vehicle Systems Carrier (US)
- FY – fiscal year
Read more about this topic: Glossary Of Military Abbreviations