World War I: April 6, 1917 - November 11, 1918 (If a veteran served with the United States military forces in Russia, the ending date is April 1, 1920.)
World War II: December 7, 1941 - December 31, 1946
Korea: June 27, 1950 - January 31, 1955
Vietnam: August 5, 1964 - May 7, 1975
Persian Gulf: August 2, 1990 to date to be set by law or Presidential Proclamation
Benefits also are offered to those who received an expeditionary medal for service in: