air observer
повітряний спостерігач
повітряний спостерігач
forward observer (FO), forward observation officer; (artillery) observer / spotter
aerial refueling / air refueling / in-flight refueling (IFR) / air-to-air refueling (AAR)
air combat capable helicopter / air-to-air capable helicopter
air support field pack, field pack air support, airborne / para (air support) / Pathfinder Bergen
United Nations Aouzou Strip Observer Group (UNASOG)
United Nations Military Observer Group in India and Pakistan (UNMOGIP)
United Nations military observer mission
United Nations Observer Group in Central America (ONUCA)
United Nations Observer Mission in Angola (MONUA)
United Nations Observer Mission in Bougainville (UNOMB)
United Nations Observer Mission in El Salvador (UNOSAL / фр. ONUSAL)