Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : Richard L. Newhafer (March 6, 1921--October 12, 1974) was an American novelist, teleplay writer and television director whose experience as a highly decorated veteran of World War II and the Korean War played a key role in his books and in his contribution to ABC's 1960s series Combat! and Twelve O'Clock High. 
Answer : World War II
Which war did Richard L. Newhafer serve in?