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 : Portrait of Pier Maria Rossi di San Secondo is a painting by the Italian Mannerist artist Parmigianino, executed around 1535--1539 and housed in the Museo del Prado, Madrid, Spain.
Answer : Museo del Prado
What is the name of the place where Portrait of Pier Maria Rossi di San Secondo can be found?

Context : Oglethorpe's Regiment of Foot was an infantry regiment of the British Army formed for service in North America during the War of Jenkins' Ear.
Answer : British Army
Which armed forces utilised the service of Oglethorpe's Regiment?