The troop was sent on a recon mission to gather information for a future operation.
An example of recon is a visit across enemy lines to scope out the enemy positions.
Origin of reconrec(ombination) + -on
- (chiefly US, military slang) reconnaissance.
(third-person singular simple present recons, present participle reconning, simple past and past participle reconned)
- (chiefly US, military slang) reconnoiter.
Contracted form of reconnaissance
Contracted form of recombination + -on