At least 181 days of continuous active duty with no dishonorable discharge. If you were discharged earlier due to a service-related disability you should contact your Regional VA Office for eligibility verification.
July 26, 1947 to June 26, 1950
February 1, 1955 to August 4, 1964, or May 8, 1975 to September 7, 1980 (Enlisted), or to October 16, 1981 (Officer)
Enlisted Veterans whose service began after September 7, 1980, or officers who service began after October 16, 1981, must have completed 24-months of continuous active duty and been honorably discharged
Reserves and National Guard
Certain U.S. Citizens who served in the Armed Forces of a government allied with the United States during World War II.
Surviving spouse of an eligible Veteran who died resulting from service, and has not remarried.
The spouse of an Armed Forces member who served Active Duty, and was listed as a POW or MIA for more than 90-days.