surveillance drone

surveillance, high- and low-altitude surveillance

surveillance, under surveillance

jet-propelled surveillance drone

drone aerial surveillance

drone surveillance aircraft

target surveillance drone

advanced surveillance drone

air surveillance drone

air surveillance drone system

airborne surveillance drone

Army/Navy universal surveillance drone

battlefield surveillance drone

combat surveillance drone

surveillance drone system

TV-surveillance drone

drone war (world’s first drone war)

drone field of view (drone FOV)

drone swarm attack / drone swarming attack

drone swarm's counter-drone capabilities

hobby drone (hobby grade drone)

one-way attack drone (OWA drone)

air surveillance

air surveillance means

airborne surveillance device

air-ground surveillance capability (AGS)

Alliance Ground Surveillance (AGS)

Alliance Ground Surveillance Steering Committee

all-round surveillance of terrain

anti-surveillance measures

battlefield surveillance

battlefield surveillance radar (BFSR)

broad area maritime surveillance (BAMS)