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 : Wager Swayne (November 10, 1834 -- December 18, 1902) was a Union Army colonel during the American Civil War who eventually was appointed as the last major general of volunteers of the Union Army.
Answer : American Civil War
Which conflict was Wager Swayne a part of?