Fort Sam Houston is a U.S. Army post in San Antonio, Texas. Known colloquially as "Fort Sam," it is named for the first President of the Republic of Texas, Sam Houston. The installation's missions include serving as the command headquarters for the United States Army North (formerly the Fifth United States Army), United States Army South, the Army Medical Command (MEDCOM) headquarters, the Army Medical Department (AMEDD) Center and School, the Fifth Recruiting Brigade, Navy Regional Recruiting, the San Antonio Military Entrance and Processing Station, and the Medical Education and Training Campus (METC). On October 1, 2010, Fort Sam Houston joined Lackland and Randolph Air Force Bases to create Joint Base San Antonio, under Air Force administration.