The eruption of Mount Pinatubo in the Philippines buries Clark Air Base and two other US military installations with volcanic ash, forcing the Air Force to evacuate some 15,000 people to Guam and the United States. Operation Fiery Vigil becomes the largest evacuation operation since the fall of South Vietnam in 1975. Clark Air Base in the Philippines, the oldest and largest USAF overseas base, closes permanently.
Bell Textron has won DARPA's contest for a no-runway, high-speed drone that will prove out technologies useful for special operations forces and possibly the Air Force's Agile Combat Employment concept. Bell's design converts a tiltrotor to a jet-powered aircraft able to fly at up to 450 knots.