Airfield Defence Guards (ADG) are a mustering of the Royal Australian Air Force (RAAF) that are dedicated to the security and ground defence of airbases and other military aviation assets. Other duties include training other RAAF personnel, in skills such as the handling of small arms and infantry tactics. They do not, however, operate anti-aircraft artillery or missiles (which are the responsibility of the army and in particular, the Royal Australian Artillery). ADG are comparable to the British Royal Air Force Regiment, USAF Security Forces, and the RNZAF Security Forces.