peacekeeping operation (PKO)

Ad Hoc Group on Cooperation in Peacekeeping

civilian element (peacekeeping)

collective peacekeeping force

peacekeeping (PK)

peacekeeping activities

peacekeeping contingent

peacekeeping force

peacekeeping mission

Standardization of Peacekeeping Training and Education

United Nations Department of Peacekeeping Operations (DPKO)

United Nations Peacekeeping Force in Cyprus (UNFICYP)

United Nations Special Committee on Peacekeeping Operations

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

allied joint operation

amphibious operation

anti-air operation