President Ronald Reagan approved the establishment of USSOCOM in April 1987; a month later the other military branches reassigned their own respective special operations forces (SOF) units to the USSOCOM Headquarters in Tampa Bay, Florida at MacDill Air Force Base. However, as the Marine Corps was reluctant to make the subtle change, its specialized assets assigned to the FMF's Marine Air-Ground Task Forces are not recognized by the charter signed in 1987.