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 : 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
In which war did Charles Calvin Rogers fought?

Context : Nikola Kalabić (until the start of World War II) worked in Land-registry management in Valjevo. 
Answer : World War II
In what war was Nikola Kalabić a combatant?

Context : The Secrets of Isis, originally broadcast as Isis, is an American live-action superhero television series produced by Filmation from 1975 to 1977 for CBS's Saturday morning lineup. 
Answer : CBS

Which channel broadcast The Secrets of Isis?