The United States sells death, destruction, and terror as a fundamental instrument of its foreign policy. It sees arms sales as a way of making and keeping strategic friends and tying countries more directly to U.S. military planning and operations. At its simplest, as Lt. Gen. Jeffrey B. Kohler, director of the Defense Security Cooperation Agency, told The New York Times in 2006, the United States likes arms deals because “it gives us access and influence and builds friendships.” South Asia has been an important arena for this effort, and it teaches some lessons the United States should not ignore.