Airlift begins for Operation Just Cause, in which USAF plays a major role, including air strikes, airlift, airdrops, and aerial refueling. The F-117A stealth fighter is used operationally for the first time. In the largest night-combat airdrop since World War II, USAF aircraft transport 9,500 airborne troops from various locations to Panama in fewer than 36 hours. An AC-130H crew (mission #1J1600GA354) of the 16th Special Operations Squadron receives the 1990 Mackay Trophy. Active, Air National Guard, and Air Force Reserve Command special operations crews participate in Just Cause.
China is expanding the arsenal of counter-space weapons it could use in a potential conflict with the U.S., to include on-orbit systems, according to a new report from the Defense Intelligence Agency.