The air war over Europe during World War II proved that combat in the sky can be even more devastating than combat on the ground. When the war ended, every major city in Germany was virtually destroyed. A German writer admitted that his own nation, in taking up the sword to conquer the world, had "summoned up those bands of furies which raced across the German skies." Here, from the acclaimed historian Stephen W. Sears, is the story of Europe's air war.