What is "recondo"

Recondo is an American military term for RECONnaissance and commanDO for highly specialized infantry training or a graduate of a Recondo School who led small, heavily armed long-range reconnaissance teams that patrol deep in enemy-held territory.

Recondo is a fictional character from the G.I. Joe: A Real American Hero toyline, comic books and cartoon series. He is the G.I. Joe Team's original jungle trooper, and debuted in 1984.