security reconnaissance

counter reconnaissance / counter-reconnaissance

security and reconnaissance patrol

aerial reconnaissance and security troop

reconnaissance and security line

reconnaissance and security position

security agreement (information security, NATO)

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