John Warden and the renaissance of American air power by John Andreas Olsen

"This is one of those rare books that resolves arguments once and for all! Few people have done more for the United States than John Warden, and fewer still have been more controversial. Author John Olsen presents the true story of Warden's achievements and perceived shortfalls in an authoritative and even-handed manner. Only an author of Olsen's stature could reach to the very heart of Warden's ideas and explain them so cogently. " -- Walter Boyne, former director, National Air and Space Museum

Two-man air force : Don Gentile & John Godfrey, World War II flying legends by Philip Kaplan

"American volunteers Don Gentile and John Godfrey flew together as leader and wingman respectively, with the USAAF 4th Fighter Group based at Debden near Cambridge. At the end of their missions with the 4th the two of them had accounted for over 58 enemy aircraft destroyed. Major Gentile had scored 22 air and 6 ground kills before he was returned to the USA to help raise money for the war effort. Major Godfrey was credited with 18 air and 12 ground kills before he was shot down and taken prisoner of war." - Editorial Reviews