Over the past six decades, the United States has used its nuclear arsenal in five often inter-related ways. The first was, obviously, battlefield use, with the “battlefield” writ large to include the people of Hiroshima and Nagasaki. The long -held consensus among scholars has been that these first atomic bombings were not necessary to end the war against Japan, and that they were designed to serve a second function of the U.S. nuclear arsenal: dictating the parameters of the global (dis)order by implicitly terrorizing U.S. enemies and allies (“vassal states” in the words of former national security adviser Zbigniew Brzezinski.) The third function, first practiced by Harry Truman during the 1946 crisis over Azerbaijan in northern Iran and relied on repeatedly in U.S. wars in Asia and the Middle East, as well as during crises over Berlin and the Cuban Missile Crisis, has been to threaten opponents with first strike nuclear attacks in order to terrorize them into negotiating on terms acceptable to the United States or, as in the Bush wars against Iraq, to ensure that desperate governments do not defend themselves with chemical or biological weapons. Once the Soviet Union joined the nuclear club, the U.S. arsenal began to play a fourth role, making U.S. conventional forces, in the words of former Secretary of Defense Harold Brown, “meaningful instruments of military and political power.” As Noam Chomsky explains, Brown was saying that implicit and explicit U.S. nuclear threats were repeatedly used to intimidate those who might consider intervening militarily to assist those we are determined to attack.