Did Ford and Carter serve in WWII?

President Truman declared an end to active hostilities in World War II on December 31, 1946 (Truman proclamation #2714). Anyone who served in the U.S. Armed Forces from December 7, 1941 to December 31, 1946 is considered a veteran of World War II.

Title 38, United States Code, Section 101(8): The term “World War II” means the period beginning December 7, 1941, and ending on December 31, 1946.