Michael Korda's brilliant work of history takes the reader back to the summer of 1940, when fewer than three thousand young fighter pilots of the Royal Air Force—often no more than nine hundred on any given day—stood between Hitler and the victory that seemed almost within his grasp.

Korda re-creates the intensity of combat in ""the long, delirious, burning blue"" of the sky above southern England, and at the same time—perhaps for the first time—traces the entire complex web of political, diplomatic, scientific, industrial, and human decisions during the 1930s that led inexorably to the world's first, greatest, and most decisive air battle. Korda deftly interweaves the critical strands of the story—the invention of radar (the most important of Britain's military secrets); the developments by such visionary aircraft designers as R. J. Mitchell, Sidney Camm, and Willy Messerschmitt of the revolutionary, all-metal, high-speed monoplane fighters the British Spitfire and Hurricane and the German Bf 109; the rise of the theory of air bombing as the decisive weapon of modern warfare and the prevailing belief that ""the bomber will always get through"" (in the words of British prime minister Stanley Baldwin). As Nazi Germany rearmed swiftly after 1933, building up its bomber force, only one man, the central figure of Korda's book, Air Chief Marshal Sir Hugh Dowding, the eccentric, infuriating, obstinate, difficult, and astonishingly foresighted creator and leader of RAF Fighter Command, did not believe that the bomber would always get through and was determined to provide Britain with a weapon few people wanted to believe was needed or even possible. Dowding persevered—despite opposition, shortage of funding, and bureaucratic infighting—to perfect the British fighter force just in time to meet and defeat the German onslaught. Korda brings to life the extraordinary men and women on both sides of the conflict, from...