 From the late 1960s until the 1980s, Fort Tilden served as a United States Army Reserve post, with the 187th Infantry Brigade's 5/5th FA; a towed 105 mm howitzer battalion stationed there until the 187th was deactivated in 1995.Fort Tilden was also the location of the 411th Engineer Brigade, which was headquartered there from 1968 to 1978.Fort Tilden remained an Army installation until the late 1970s, when it was decommissioned and turned over to the National Park Service, and made part of the Gateway National Recreation Area.