<Table> <Tr> <Th> War (s) </Th> <Th> Date </Th> <Th> Titled </Th> <Th_colspan="2"> Belligerents </Th> <Th> Ended </Th> <Th> References </Th> </Tr> <Tr> <Th> Declaring party </Th> <Th> Opponent </Th> </Tr> <Tr> <Td> Arab--Israeli War (1948--49) Suez Crisis (1956) Six - Day War (1967) War of Attrition (1967--70) Yom Kippur War (1973) </Td> <Td> 15 May 1948 </Td> <Td> declaration of war </Td> <Td> Egypt Jordan Syria Iraq Lebanon </Td> <Td> Israel </Td> <Td> Egypt: 26 March 1979 Jordan: 26 October 1994 Syria: still at war Iraq: still at war Lebanon: still at war </Td> <Td> </Td> </Tr> <Tr> <Td> Ogaden War </Td> <Td> 13 July 1977 </Td> <Td> declaration of war </Td> <Td> Somalia </Td> <Td> Ethiopia </Td> <Td> 15 March 1978 </Td> <Td> </Td> </Tr> <Tr> <Td> Iran--Iraq War </Td> <Td> 22 September 1980 </Td> <Td> declaration of war </Td> <Td> Iraq </Td> <Td> Iran </Td> <Td> 20 July 1988 </Td> <Td> </Td> </Tr> <Tr> <Td> Falklands War </Td> <Td> 11 May 1982 </Td> <Td> declaration of a war </Td> <Td> Argentina </Td> <Td> United Kingdom </Td> <Td> 20 June 1982 </Td> <Td> </Td> </Tr> <Tr> <Td> United States invasion of Panama </Td> <Td> 15 December 1989 </Td> <Td> existence of a state of war </Td> <Td> Panama </Td> <Td> United States </Td> <Td> 31 January 1990 </Td> <Td> </Td> </Tr> <Tr> <Td> Eritrean--Ethiopian War </Td> <Td> 14 May 1998 </Td> <Td> existence of a state of war </Td> <Td> Ethiopia </Td> <Td> Eritrea </Td> <Td> 12 December 2000 </Td> <Td> </Td> </Tr> <Tr> <Td> Chadian Civil War (2005--10) </Td> <Td> 23 December 2005 </Td> <Td> existence of a state of war </Td> <Td> Chad </Td> <Td> Sudan </Td> <Td> 15 January 2010 </Td> <Td> </Td> </Tr> <Tr> <Td> Djiboutian--Eritrean border conflict </Td> <Td> 13 June 2008 </Td> <Td> existence of a state of war </Td> <Td> Djibouti </Td> <Td> Eritrea </Td> <Td> 6 June 2010 </Td> <Td> </Td> </Tr> <Tr> <Td> Russo - Georgian War </Td> <Td> 9 August 2008 </Td> <Td> declaration of war </Td> <Td> Georgia </Td> <Td> Russia </Td> <Td> 16 August 2008 </Td> <Td> </Td> </Tr> <Tr> <Td> Heglig Crisis </Td> <Td> 11 April 2012 </Td> <Td> existence of a state of war </Td> <Td> Sudan </Td> <Td> South Sudan </Td> <Td> 26 May 2012 </Td> <Td> </Td> </Tr> <Tr> <Td> Sinai insurgency </Td> <Td> 1 July 2015 </Td> <Td> existence of a state of war </Td> <Td> Egypt </Td> <Td> Islamic State </Td> <Td> still at war </Td> <Td> </Td> </Tr> </Table> <Tr> <Th> War (s) </Th> <Th> Date </Th> <Th> Titled </Th> <Th_colspan="2"> Belligerents </Th> <Th> Ended </Th> <Th> References </Th> </Tr> <Tr> <Th> Declaring party </Th> <Th> Opponent </Th> </Tr> <Tr> <Td> Arab--Israeli War (1948--49) Suez Crisis (1956) Six - Day War (1967) War of Attrition (1967--70) Yom Kippur War (1973) </Td> <Td> 15 May 1948 </Td> <Td> declaration of war </Td> <Td> Egypt Jordan Syria Iraq Lebanon </Td> <Td> Israel </Td> <Td> Egypt: 26 March 1979 Jordan: 26 October 1994 Syria: still at war Iraq: still at war Lebanon: still at war </Td> <Td> </Td> </Tr>

Which law made it illegal for the u.s. to declare war