This article reviews the military buildup of World War II that led to victory and, by an indirect route, to a richer world. The creation of the US armaments industry is breathtaking for the speed with which it developed. After the surprise attack at the close of 1941, it did not take much time for the country to respond. Shocked by a sneak attack, Americans were able to put their love affair with the car on hold to make war machines. The entire US automotive industry converted its plants to the war effort, and much of that industrial might was devoted to building airplanes. Technologies developed for the war were quickly given civilian uses. After years of rationing and the Great Depression before that, there was plenty of demand stored up. GPS today keeps watch on truck fleets, tracks stolen cars, and serves a multitude of other civilian uses that save lives, property, and money. The Predator and other unpiloted aerial vehicles are believed to represent the future of commercial air transportation.

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