drone reconnaissance

counter reconnaissance / counter-reconnaissance

drone reconnaissance aircraft

battlefield reconnaissance drone

high-level reconnaissance drone

independently-guided reconnaissance drone

IR reconnaissance drone

reconnaissance drone

strategic reconnaissance 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)

aerial reconnaissance

aerospace reconnaissance vehicle

air reconnaissance

air reconnaissance plan

area reconnaissance

armed reconnaissance

armored command reconnaissance vehicle (ACRV)

armored reconnaissance and patrol vehicle (ARPV)

armored reconnaissance vehicle (ARV)

artillery reconnaissance

combat reconnaissance vehicle

command and reconnaissance carrier

command, control, computers, communication, intelligence, surveillance, reconnaissance (C4ISR)

engineer reconnaissance

engineer reconnaissance vehicle

fan method (of reconnaissance)

fighting reconnaissance

ground reconnaissance (gnd recon)