Although the United States declared war against Germany in December 1941, a successful assault on Nazi-occupied Europe could not happen until Germany's industrial and military might were crippled. The first target was the Luftwaffe, and so the United States Army Air Forces joined with Great Britain's Royal Air Force to battle the most powerful air force in the world. One of the standout units of this campaign was the legendary 303rd Bomb Group—Hell's Angels—and here, Jay Stout lets these men tell their own story of the dramatic and terrible air battles they fought against Germany, ultimately changing the course of the war.