Wars are fought by leaders who intend to win, one way or another, using any and all means available to them. The Cold War was a decades-long series of proxy battles between the two nuclear-armed superpowers, the Soviet Union and the United States, during which the communist and capitalist arch enemies engaged in conflict on the terrain of lesser states, to the detriment of millions of civilians living in those places. But the dissolution of the U.S.S.R. and the fall of the Berlin Wall ushered in neither a period of world peace nor a dramatically reduced U.S. military budget. Instead, U.S....