contest the ground

wing-in-ground-effect amphibious craft; ground-effect vehicle (GEV); wing-in-ground-effect (WIG); ground-effect craft; wingship; flarecraft; ekranoplan

contest the air

all-army talent contest

contest

battle-ground / battle ground / battleground

Ground Observer 12 (GO 12 Ground Surveillance Radar, нім. Bodenüberwachungsradar)

vantage ground / vantage-ground

ground-to-ground guided missile

ground-to-ground rocket

ground/air communications / ground-air communication

air defense ground environment

air-ground operations system

air-ground support

air-ground surveillance capability (AGS)

air-to-ground communications equipment

air-to-ground fire support

air-to-ground missile (AGM)

air-to-ground rocket

Alliance Ground Surveillance (AGS)

Alliance Ground Surveillance Steering Committee

armored ground warfare

Army (ground forces / land forces)

distributed common ground station (DCGS)

early warning ground-based radar (EW GBR)

fortified ground installation

give ground

Ground Assisted Air Interdiction (GAAI)

Ground Based Air Defenses (GBAD)

ground combat

ground control

ground control station (GCS)

ground controlled interception