Teacher:Generate a correct and concise answer for the question based on the words in the context.
Teacher: Now, understand the problem? Solve this instance: Context : Vermont Garrison (October 29, 1915 -- February 14, 1994) was a career officer in the United States Air Force, and an ace with 17.33 credited victories in aerial combat.
Question : What army did Vermont Garrison serve in?
Student:
United States Air Force