Naval Air Station Key West is one of the most unique military installations in the country, spread across several Keys locations including Boca Chica Field (the main airfield), Truman Annex (a historic former President's vacation site now partly civilian), and the Sigsbee Park housing area. NAS Key West is the Navy's premier aerial combat training facility, known for its exceptional flying weather and low-altitude training corridors. The installation hosts fighter squadrons from across the U.S. and allied nations for dissimilar air combat training exercises.