reconnaissance flight

counter reconnaissance / counter-reconnaissance

aviation reconnaissance flight

flight restriction zone / flight restricted zone (FRZ)

aerial reconnaissance

aerospace reconnaissance vehicle

air reconnaissance

air reconnaissance plan

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)

intelligence, surveillance, and reconnaissance (ISR)

limit of reconnaissance

local reconnaissance

long-range (reconnaissance) patrol (LRRP)

major reconnaissance

maritime patrol and reconnaissance aircraft (MPRA)

mounted reconnaissance

National Reconnaissance Office (NRO)

NBC reconnaissance

nuclear, biological, and chemical (NBC) reconnaissance

offensive reconnaissance

operational reconnaissance