The Cold War between the United States and the Soviet and Chinese Communists occupied the attention of two generations of Americans from 1945 to 1991. Citizens in these nations faced the nightmare of nuclear holocaust caused by even small missteps between the adversaries. But some unlikely people were responsible for ending the Cold War. Ronald Reagan, a militant anti-Communist crusader, together with his pragmatic and steady secretary of state, George Shultz, guided the United States through a policy of heightened military preparedness in order to push the Soviet Union toward peace. It was a dangerous gambit, but it worked; diplomacy rather than armed conflict prevailed. Reagan’s Cold War strategy succeeded largely because during the 1980s an enlightened leader, Mikhail Gorbachev, governed the Soviet Union. He envisioned the end of the Cold War as a means of bringing political and economic reform to his beleaguered and bankrupt nation. What Gorbachev began, his successor, Boris Yeltsin, finished: the dismantling of the Soviet Union and its empire, and the infusion of democracy and capitalism into Russia.
The activism of ordinary people around the world also helped transform the relationship between the superpowers. Antinuclear protesters in Western Europe and the United States, including Barbara Deming and her feminist cadre at the Seneca Falls Women’s Encampment, kept up pressure on Western leaders to make continued nuclear expansion unacceptable. In Eastern Europe, Polish dockworker Lech Walesa and other fighters for democracy broke from the Soviet orbit and tore down the bricks and barbed-wire fences of the iron curtain. Who won the Cold War? Clearly, the United States did, thereby gaining dominance as the world’s sole superpower. Yet this did not necessarily guarantee peace. In assuming this preeminent role, the United States faced new threats to international security from governments and insurgents seeking to rebuild nations along ethnic and religious lines in the Balkans, the Middle East, the Persian Gulf, and Africa. Ironically, the bipolar Cold War in some ways had meant a more stable and manageable world presided over by the two superpowers. The collapse of the Soviet empire created a power vacuum that would be filled by a variety of unchecked and combustible local and regional forces intent on challenging the political and economic dominance of the United States and, even more sweeping, the values of Western civilization. At the same time, as globalization and digital technology shrank the world economically and culturally, the United States became the chief target of those who wanted to contain the spread of Western values. Terrorism, which transcended national borders, replaced communism as the leading enemy of the United States and its allies.