<Table> <Tr> <Th> Military engagement </Th> <Th> Opponent (s) </Th> <Th> Initial authorization </Th> <Th> President </Th> <Th> Result </Th> </Tr> <Tr> <Td> Korean War </Td> <Td> China <P> North Korea Soviet Union </P> </Td> <Td> UNSCR 84, 1950 </Td> <Td> Harry S. Truman </Td> <Td> Korean Armistice Agreement, 1953 </Td> </Tr> <Tr> <Td> Multinational Force in Lebanon </Td> <Td> Shia militias, Druze militias, Syria </Td> <Td> UNSCR 425, 1978 <P> UNSCR 426, 1978 </P> </Td> <Td> Jimmy Carter, Ronald Reagan </Td> <Td> U.S. forces withdrew in 1984 </Td> </Tr> <Tr> <Td> Persian Gulf War </Td> <Td> Iraq </Td> <Td> UNSCR 678, 1990 </Td> <Td> George H.W. Bush </Td> <Td> UNSCR 689, 1991 </Td> </Tr> <Tr> <Td> Bosnian War </Td> <Td> Republika Srpska </Td> <Td> UNSCR 770, 1992 UNSCR 776, 1992 UNSCR 836, 1993 </Td> <Td> Bill Clinton </Td> <Td> Reflagged as IFOR in 1995, Reflagged as SFOR in 1996, Completed in 2004 </Td> </Tr> <Tr> <Td> Second Liberian Civil War </Td> <Td> Peacekeeping </Td> <Td> UNSCR 1497, 2003 </Td> <Td> George W. Bush </Td> <Td> U.S. forces are withdrawn in 2003 after the UNMIL is established . </Td> </Tr> <Tr> <Td> Haitian coup d'état </Td> <Td> UNSCR 1529, 2004 <P> UNSCR 1542, 2004 </P> </Td> <Td> </Td> </Tr> <Tr> <Td> First Libyan Civil War <Ul> <Li> 2011 military intervention in Libya <Ul> <Li> Operation Odyssey Dawn </Li> <Li> Operation Unified Protector </Li> </Ul> </Li> </Ul> </Td> <Td> Libya </Td> <Td> UNSCR 1973, 2011 </Td> <Td> Barack Obama </Td> <Td> Debellation of the Libyan Arab Jamahiriya, October 31, 2011 </Td> </Tr> </Table> <Tr> <Th> Military engagement </Th> <Th> Opponent (s) </Th> <Th> Initial authorization </Th> <Th> President </Th> <Th> Result </Th> </Tr> <Tr> <Td> Korean War </Td> <Td> China <P> North Korea Soviet Union </P> </Td> <Td> UNSCR 84, 1950 </Td> <Td> Harry S. Truman </Td> <Td> Korean Armistice Agreement, 1953 </Td> </Tr> <P> North Korea Soviet Union </P>

What countries have declared war on the united states