air breathing defense

air-breathing jet engine

terrain-hugging air-breathing low-flying vehicles

fresh-air hose breathing apparatus

air breathing engine

compressorless air-breathing jet engine

ram air-breathing jet engine

air breathing missile

air breathing target

breathing control

scuba (Self-Contained Underwater Breathing Apparatus)

self-contained breathing apparatus (SCBA)

engine breathing ability

hose breathing apparatus

hose breathing device

CABCDE (Critical Bleeding, Airway, Breathing, Circulation, Disability, Exposure)

breathing system

oxygen-breathing apparatus

autonomous breathing apparatus

breathing oxygen

breathing-oxygen system

self-contained open-circuit breathing apparatus

Emergency Escape Breathing Device (EEBD)

Air Force Air Defense Command

perimeter defense (all-around defense)

beach defense mine / beach-defense mine

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

air defense (AD)

Air defense and Airspace Management Directorate (NATO)

air defense area

air defense artillery (ADA)