21. When did this person serve on active duty in the U.S. Armed Forces?
Mark [X] in a box for each period in which this person served.
[] September 2001 or later
[] August 1990 to August 2001 (including Persian Gulf War)
[] September 1980 to July 1990
[] May 1975 to August 1980
[] Vietnam era (August 1964 to April 1975)
[] March 1961 to July 1964
[] February 1955 to February 1961
[] Korean War (June 1950 to January 1955)
[] January 1947 to June 1950
[] World War II (December 1941 to December 1946)
[] November 1941 or earlier
[Housing Question 17-42 should be asked only of individuals 15 and older.]
21. Mark a box for EACH period served, even if service in the period was brief.