Operation Just Cause was a U.S. invasion of Panama that took place from December 20, 1989 to January 31, 1990. The operation had the goals of protecting American lives, restoring democracy in Panama, preserving the Panama Canal treaties, and apprehending Panamanian leader Manuel Noriega. Over 25,000 U.S. troops were deployed against Panamanian forces, resulting in hundreds of Panamanian casualties and the removal of Noriega from power. Noriega surrendered on January 3, 1990 and was sent to the U.S. to face drug trafficking charges.