This is the first book to be written about a group of remarkable men who left the wealth and comfort of America before the Second World War to volunteer for the most dangerous trade in the world. While the everlasting popularity of books and films about Bomber Command is self-evident, few people know there were any Americans flying with RAF Bomber Command. We follow the life stories and flying careers of 21 Americans who fought in the air war over Europe with the RAF's two premier Bomber Command squadrons - 9 and 617. Of these men of free will, 15 were killed in action.