Period of war dates:

The dates of the Korean and Vietnam Wars and the Persian Gulf Conflict are prescribed in the State law, while the dates of the other wars are derived from Federal law. Also eligible for the exemption are certain individuals who served during World War II in the U.S. Merchant Marine and persons who served overseas in a civilian capacity during World War II either in the American Field Service under United States Armies and the United States Army Groups or as a flight crew and aviation ground support employee of American Airlines' contract with the Air Transport Command.