B
- BAe – British Aerospace
- BAR – M1918 Browning Automatic Rifle
- BARV – Beach Armoured Recovery Vehicle
- BASE – British Aerospace Systems and Equipment
- BATES – Battlefield Artillery Target Engagement System
- BAT – Biometrics Automated Toolset
- BB – Base bleed
- BBSP – Blowback shifted pulse
- BC – Battery commander
- BCC – battery control centre
- BCP – Battery command post
- BCT – Brigade combat team (US)
- BCT – Basic combat training
- BCV – Battle command vehicle
- BD – base detonating
- BDA – Browning double action or bomb damage assessment
- BDM – Bunker demolition munition
- BDU – Battle dress uniform
- BE – Base ejection
- BFA – Blank-firing adaptor or blank-firing attachment
- BFV – Bradley Fighting Vehicle
- BGT – Brigade combat team
- bhp – Brake horsepower
- BIFF – Battlefield identification friend or foe
- BILL – Bofors, infantry, light and lethal
- BITE – Built-in test equipment
- BL – Blank
- BL-T – Black tracer
- BLITS – Beta lighted infantry telescope system
- BLT – Battalion landing team
- BLR – Blindado Ligero de Ruedas
- BMF – Belgian Mechanical Fabrication
- BMNT – Begin morning nautical twilight
- BMP – Pronounced "bimp". A Former Warsaw Pact IFV
- BMR – Blindado Medio de Ruedas
- BMS – Battalion mortar system
- BMS – Battlefield management system
- BNCC (USAF) – Base network control center
- BNS – Bill night sight
- BOCV – Battery operations centre vehicle
- BOG-Dwell – Boots on the ground – dwell (down time)
- BOL – Bearing-only launch
- BOLTS – Bolt-on loading tray system
- BOSS – Ballistic optimizing shooting system
- BPS – Battery power source
- BSP – Bright source protection
- BSSG – Brigade service support group
- BST – Basic skills trainer
- BT – Boat tail
- BT – Bullet trap
- BTA – Best technical approach
- BTU – Bullet trap universal
- BUA – BILL under armour or built-up area
- BW – Bacteriological warfare
- BX – Bionix AFV
Read more about this topic: Glossary Of Military Abbreviations