Declared War Dates
World War II 12/07/1941 – 12/31/1946

Korean Conflict
06/27/1950 – 01/31/1955

Vietnam Era
02/28/1961 – 05/07/1975 for veterans who served in the Republic of Vietnam during this period
08/05/1964 – 05/07/1975 otherwise

Gulf War
08/02/1990 – future date to be set by law or Presidential Proclamation