ASU — IRA Active Service Unit
Basha — Sleeping shelter
Bergen — Rucksack
BG — Bodyguard (noun or verb)
Blue-on-blue — Accidental strike on own forces
Box — General name for intelligence services
Casevac — Casualty evacuation
CAT — Counter-attack team
Comms — Communications
CTR — Close target reconnaissance
DET — Intelligence gathering organization
DAS — Colombian Police
DF — Direction finding
Dicker — IRA scout
Director — Officer commanding special forces, generally a brigadier
DOP — Drop-off point
DPMs — Disruptive pattern material camouflage garments
DZ — Drop zone
EMOE — Explosive method of entry
ERV — Emergency rendezvous
EMU — Encryption device
FMB — Forward mounting base
FOB — Forward operating base
GPS — Global positioning system (navigation aid)
Head-Shed — Headquarters
Incoming — Incoming fire
Int — Intelligence
IO — Intelligence officer
LO — Liaison officer
LUP — Lying-up point
LZ — Landing zone
Magellan — Brand name of GPS
OP — Observation post
PE — Plastic explosive
Phys — Physical exercise
PIRA — Provisional IRA
Player — Terrorist
PNGs — Passive night goggles
PUP — Pick-up point
QRF — Quick reaction force
RTU — Return to unit
Rupert — Officer
SAM — Surface-to-air missile
Satcom — Telephone using satellite transmission
SEAL — Sea, Air and Land — American special forces unit
Shreddies — Army-issue underpants
SOCO — Scene of Crimes Officer
SP — Special Projects
SSM — Squadron sergeant major
RUC — Royal Ulster Constabulary
TACBE — Emergency radio
TCG — Tactical Control Group
Tout — Informer
UCBT — Under-car booby trap
US — Unserviceable
VCP — Vehicle control point
319 — VHF radio