The empirical literature on arms buildups and the use of interstate military force has advanced considerably over the last half century. Research has largely confirmed that a relationship exists between arms buildups and the subsequent use of force, although it is historically contingent. The relationship seems to have existed in some earlier historical periods but has not been a feature of international politics since 1945. Broader work such as the steps-to-war model brings understanding to such variation by demonstrating how arms races are interrelated with other causes of conflict, such as territorial disputes and alliances. Still, many important dimensions of the arms race–conflict connection remain to be explored. Differences between qualitative and quantitative arms races, for example, have not received sufficient empirical scrutiny. Precise theory also needs to be developed on direct and indirect relationships between arms races and conflict, and such theory requires empirical investigation.
David F. Mitchell and Jeffrey Pickering
Richard J. Stoll
Arms races are important phenomenon They can involve the commitment of vast amounts of resources that might otherwise be used to help societies. And arms races can be a cause of war, although there is a debate on how this happens. With the arrival of the behavioral revolution in international relations, the number of quantitative studies of arms races exploded. But with the end of the Cold War, interest in studying arms races declined sharply. This is unfortunate because it is fair to say that most of the important questions involving arms races were not resolved in the empirical work that was done during the period of the Cold War.
Peace activism in the United States between 1945 and the 2010s focused mostly on opposition to U.S. foreign policy, efforts to strengthen and foster international cooperation, and support for nuclear nonproliferation and arms control. The onset of the Cold War between the United States and the Soviet Union marginalized a reviving postwar American peace movement emerging from concerns about atomic and nuclear power and worldwide nationalist politics that everywhere seemed to foster conflict, not peace. Still, peace activism continued to evolve in dynamic ways and to influence domestic politics and international relations. Most significantly, peace activists pioneered the use of Gandhian nonviolence in the United States and provided critical assistance to the African American civil rights movement, led the postwar antinuclear campaign, played a major role in the movement against the war in Vietnam, helped to move the liberal establishment (briefly) toward a more dovish foreign policy in the early 1970s, and helped to shape the political culture of American radicalism. Despite these achievements, the peace movement never regained the political legitimacy and prestige it held in the years before World War II, and it struggled with internal divisions about ideology, priorities, and tactics. Peace activist histories in the 20th century tended to emphasize organizational or biographical approaches that sometimes carried hagiographic overtones. More recently, historians have applied the methods of cultural history, examining the role of religion, gender, and race in structuring peace activism. The transnational and global turn in the historical discipline has also begun to make inroads in peace scholarship. These are promising new directions because they situate peace activism within larger historical and cultural developments and relate peace history to broader historiographical debates and trends.
Spanning countries across the globe, the antinuclear movement was the combined effort of millions of people to challenge the superpowers’ reliance on nuclear weapons during the Cold War. Encompassing an array of tactics, from radical dissent to public protest to opposition within the government, this movement succeeded in constraining the arms race and helping to make the use of nuclear weapons politically unacceptable. Antinuclear activists were critical to the establishment of arms control treaties, although they failed to achieve the abolition of nuclear weapons, as anticommunists, national security officials, and proponents of nuclear deterrence within the United States and Soviet Union actively opposed the movement. Opposition to nuclear weapons evolved in tandem with the Cold War and the arms race, leading to a rapid decline in antinuclear activism after the Cold War ended.