The SMU Mustangs are the athletic teams representing Southern Methodist University. The Mustangs participate in the NCAA Division I (FBS for football) as a member of the American Athletic Conference. SMU was the only private school in the conference when it began operation as The American in 2013, but it was joined by Tulane and Tulsa a year later. From 1918 to 1996, the Mustangs were a member of the Southwest Conference, until it formally disbanded. The Mustangs subsequently joined the Western Athletic Conference and in 2005, SMU accepted an invitation to the Western Division of Conference USA. They accepted an invitation to join the Big East Conference, which split along football lines in 2013, with SMU and the other FBS schools reorganizing as the American Athletic Conference.