Instructions: Generate a correct and concise answer for the question based on the words in the context.
Input: Context : Captain George Everard Gibbons MC, DFC (15 February 1896 -- 20 March 1923) was a British World War I flying ace credited with 18 aerial victories gained while flying a Bristol F.2 Fighter in 1918.
Question : In what war did George Everard Gibbons fight?
Output:
World War I