TASK DEFINITION: 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.
PROBLEM: Context : Charles Calvin Rogers (September 6, 1929 -- September 21, 1990) was a United States Army officer and a recipient of America's highest military decoration--the Medal of Honor--for his actions in the Vietnam War. 
Answer : Vietnam War

SOLUTION: In which war did Charles Calvin Rogers fought?

PROBLEM: Context : Birgit Kronström (February 23, 1905 Helsinki -- July 23, 1979 Helsinki) was an actress and singer from the Swedish-speaking community of Finland. 
Answer : singer

SOLUTION: What was Birgit Kronström's career?

PROBLEM: Context : Between March 1942 and February 1943, Lysaght's produced 28,000 Owen Guns. 
Answer : 1942

SOLUTION:
What was the year that Owen Gun entered service?