The United States Invasion of Panama, codenamed Operation Just Cause, was the invasion of Panama by the United States in December 1989 and January 1990. This operation was done during the administration of U.S. President George H. W. Bush, and ten years after the Torrijos–Carter Treaties. By this treaty, it was accepted that the United States should give up control of the Panama Canal to Panama by 1 January 2000.