Air power exercized a decisive influence over military operations throughout World War. From the German Blitzrieg campaigns thaqt overran western Europe, to the war in the Pacific, success in the air was essential to victory. This work provides a handy guide to warplanes that fought for control of the skies, from the Battle of Britain to the great Allied bomber offensive against Germany. All the key aircraft are included, with photographs and technical specifications. An introductory section charts the incredible place of technical progress. In 1939, many airforces still included bi-planes. By 1945, fighter squadrons were recieving jets. Ejector seats, airborne radar and guided missiles were all entering service. This work provides a concise summary of all the main developments in aircraft design.