18b. Was active-duty military service during --
Fill a circle for each period in which this person served.
[] May 1975 or later
[] Vietnam era (August 1964 - April 1975)
[] February 1955 - July 1964
[] Korean conflict (June 1950 - January 1955)
[] World War II (September 1940 - July 1947)
[] World War I (April 1917 - November 1918)
[] Any other time
[If this person served during more than one period, fill all circles which apply, even if service was for a short time.]