Hap Arnold: The General Who Invented the US Air Force

General Henry Harley "Hap" Arnold is widely considered the father of the United States Air Force. But his long list of accomplishments doesn't begin or end there. He was also the first and only five-star general of the US Air Force; one of the first US military aviators; the first American to carry air mail; and the architect of the war-winning air strategy of World War II.