Welcome to the United States Marine Corps School of Infantry

Welcome to the United States Marine Corps School of Infantry. The School of Infantry (SOI) is the second stage of initial military training for enlisted United States Marines after Recruit Training. Since the initial training pipeline is divided between coasts, Marines from areas east of the Mississippi River usually graduate from MCRD Parris Island and move on to SOI at SOI East (located at Camp Geiger, a satellite facility of Camp Lejeune in North Carolina), while those from the western half of the natio