Army - Panama Invasion Veteran with EXP Service Ribbons - MugThe United States Invasion of Panama, codenamed Operation Just Cause, lasted over a month between mid December 1989 and late January 1990. It occurred during the administration of President George H. W. Bush and ten years after the TorrijosCarter Treaties were ratified to transfer control of the Panama Canal from the U. S. to Panama by 1 January 2000. During the invasion, de facto Panamanian leader, general and dictator Manuel Noriega, who for a long