authorized operation

authorized holding (logistics)

authorized personnel

authorized strength

confidential-modified / confidential modified handling (authorized information)

modified handling authorized

authorized ammunition

authorized parts list

authorized aircraft

authorized low flying

authorized modification

authorized pilot

authorized flight envelope

authorized absence

admittance by authorized credentials only

authorized representative (demilitarization)

clandestine operation; covert operation

humanitarian operation; humanitarian relief operation (HUMRO)

PZ operation (pick-up zone operation)

noncombatant evacuation operation (NEO); non-combat evacuation operation

aeromobile operation

African Union / United Nations Hybrid operation in Darfur (UNAMID)

air defense operation

air logistic support operation

air operation

airborne and amphibious operation

airborne assault operation

airborne/ amphibious operation

air-land operation

air-landed operation

airmobile operation

alien migration interdiction operation

Alliance operation