Reconnaissance

Noun

 * 1) The act of scouting or exploring (especially military or medical) to gain information.

Thesaurus
air cover, air raid, air support, bombing, cover, dry run, examination, exploration, inspection, investigation, milk run, mission, recce, recco, recon, reconnaissance mission, reconnoiter, reconnoitering, scouting, scramble, scrutiny, shuttle raid, sortie, strafing, survey, training mission, umbrella

Alternative forms

 * recce
 * recon