Taught to fly by the Wright Brothers, appointed the first and only five-star general of the Air Force, and remembered as the man who won World War II's air war, Henry Harley "Hap" Arnold is one of the most significant figures in American aviation history. From 1938 to 1946, as the first Commanding General of the US Army Air Forces--the largest, most powerful air armada that has ever been assembled--Arnold fought World War II not in the field but in...