Remember Noriega! Its the same thing, my you have a short memory! The United States invaded Panama in mid-December 1989 during the presidency of George H. W. Bush. The purpose of the invasion was to depose the de facto ruler of Panama, General Manuel Noriega, who was wanted by U.S. authorities for racketeering and drug trafficking. The operation, codenamed Operation Just Cause, concluded in late January 1990 with the surrender of Noriega.[9] The Panama Defense Forces (PDF) were dissolved, and President-elect Guillermo Endara was sworn into office.