Colonel Jesus Villamor Air Base, known simply as Villamor Air Base (IATA: MNL, ICAO: RPLL), is the headquarters of the Philippine Air Force (PAF) and shares runways with Ninoy Aquino International Airport (NAIA). It was formerly known as Nichols Field or Nichols Air Base and possibly as Nichols Freeport Zone. Chiefly used as a PAF transport/helicopter airbase, it is also the military installation that the president of the Philippines uses when departing for foreign or domestic trips, though foreign departures are mostly done at the Philippine Airlines–operated NAIA Terminal 2 (as PAL is the official charter airline for the president). Also, foreign dignitaries visiting Manila would usually arrive at the air base.