
Axis   An imaginary line that passes through a body, about which it 
rotates or may be assumed to rotate. For example, the horizontal axis, the
lateral axis and the longitudinal axis about which an aircraft rotates.

Battalion   Military formation, normally some 600 strong in the British 
army

BDA   Bomb Damage Assessment, a process carried out by satellites and 
aerial reconnaissance to find out exactly how much damage has been done to
the enemy

Cal   Caliber the diameter of a gun barrel

CAP   Combat Air Patrol standing patrols flown over designated areas by 
Harrier aircraft

CAW   Carrier Air Wing

CENTCOM   Central Communications

Chaff   Radar-reflecting tinsel curtain propelled into the sky by 
ship-mounted projectors to deflect homing missiles
