nap-of-the-earth (NOE) (ground-hugging / terrain masking / flying under the radar / hedgehopping)

terrain-hugging air-breathing low-flying vehicles

nap-of-the-earth pilotage

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

hedgehopping

hedgehopping bombing

scorched earth tactics (scorch-earth tactics)

earth-centered earth-fixed coordinate system (ECEF)

accident-free flying / mishap-free flying

mishap-free flying / accident-free flying

low flying aircraft / low-flying aircraft

automatic masking criteria

electronic masking

masking

video masking

terrain flying

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

radar cross-section (RCS); radar signature; radar crossover

TRML-4D radar (нім. Telefunken Radar Mobil Luftraumüberwachung / Telefunken mobile airspace surveilance radar)

accident of the ground (terrain)

terrain-avoidance / clearance radar

battle-ground / battle ground / battleground

vantage ground / vantage-ground

ground-to-ground guided missile

ground-to-ground rocket

ground/air communications / ground-air communication

beyond-the-horizon ground-based radar

early warning ground-based radar (EW GBR)

ground radar installation

ground-based battlefield surveillance radar station

ground-control radar

over-the-horizon ground-based radar

SNAR ground artillery reconnaissance radar station (Russia)