Reagan invades Grenada without formal War Powers authorization

President Ronald Reagan ordered 7,000 U.S. troops to invade the Caribbean island of Grenada under Operation Urgent Fury, citing danger to American medical students and regional instability following a Marxist coup. Reagan notified Congress approximately 13 hours after the invasion began but cited no specific section of the War Powers Resolution. The House voted 403-23 to invoke the WPR 60-day clock; Reagan argued the operation would conclude before the deadline and never sought formal authorization.