In May 1940, Group Captain Peter Townsend took command of 85 Squadron, tasked with preparing it for the defense of Great Britain against German bombers. It was the beginning of the long, hot, lethal summer in which the RAF and the Luftwaffe fought to the death over England in the furious conflict which ultimately saved Britain from Nazi invasion. Peter Townsend's epic Duel of Eagles is widely acknowledged as the classic account of the Battle of Britain-the desperate, defining clash which would become one of the greatest triumphs in British military history.