You will be given a definition of a task first, then some input of the task.
Generate a correct and concise answer for the question based on the words in the context.

Context : William Sooy Smith (July 22, 1830 -- March 4, 1916) was a West Point graduate and career United States Army officer who rose through the ranks to become a major general in the Union Army during the American Civil War.
Question : What was the war that William Sooy Smith fought in?
Output:
American Civil War