That is scouting out the location of enemy troops, artillery and tanks, seeing what they are doing and where they are headed.
Reconnaissance is a noun.
Surveillance
The reconnaissance patrol leader.
there was a reconnaissance for illigeal drugs at the jr. high
Reconnaissance Corps ended in 1946.
reconnaissance
The two phases of reconnaissance are passive and active. In passive reconnaissance, the attacker gathers information without directly interacting with the target system. In active reconnaissance, the attacker engages with the target system to gather more detailed information.
Reconnaissance
Route reconnaissance and building searches
National Reconnaissance Office was created in 1961.
Special Reconnaissance Regiment was created in 2005.
Reconnaissance Corps's motto is 'Only The Enemy In Front'.