In military operations, reconnaissance or scouting is the exploration outside an area occupied by friendly forces to gain information about natural features and other activities in the area.
Examples of reconnaissance include patrolling by troops (skirmishers, long-range reconnaissance patrol, U.S. Army Rangers, cavalry scouts, or military intelligence specialists), ships or submarines, manned or unmanned reconnaissance aircraft, satellites, or by setting up observation posts. Espionage normally is not reconnaissance, because reconnaissance is a military's special forces operating ahead of its main forces; spies are non-combatants operating behind enemy lines.
Often called recce (British, Canadian and Australian English) or recon (American English), the associated verb is reconnoitre or reconnoiter.
The act of exploring (especially military or medical) to gain information.
To perform a reconnaissance (of an area; an enemy position); to scout with the aim of acquiring information.
"Our scout will reconnoiter the path ahead of our troops."
An act or instance of reconnoitering.
"The pilot reported the findings of his reconnoiter."
To examine with the eye to make a preliminary examination or survey of; esp., to survey with a view to military or engineering operations.
explore, often with the goal of finding something or somebody
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