It has been only a quarter-century since the end of the Cold War, but the U.S. is already in the midst of its second great foreign-policy debate of the post-Soviet era. The first, which carried us from the administration of the first President Bush through the second, was over the appropriate extent of America’s global ambitions. It took place largely among foreign policy elites, between those who (roughly speaking) wanted to stabilize the world and decrease the chances of conflict, and those who sought to liberalize other countries, hoping to spread democracy and improve the lot of people suffering from tyranny and civil war.
The second debate, which is being played out today, centers on whether the U.S. should retain the leading international role it has held since the end of World War II. Unlike the earlier debate, this one is taking place among elites and non-elites. It pits internationalists of every stripe against those who are isolationists or very nearly that, holding to a minimal view of what the U.S. should be doing beyond its borders.
It is worth reviewing how we got to this point, because the seeds of the second debate were sown in part by the first. The 25 years since the end of the Cold War have been a time of uncharacteristic, even unprecedented, American primacy. Not surprisingly, some in the U.S. argued that this situation should be exploited. on the left and right alike, voices called for the U.S. to do things in the world not out of necessity but out of choice, not because vital national interests were at stake but because there were perceived opportunities to do good.
This view wasn’t universal. The principal alternative was a more modest view of what the U.S. could accomplish—one consistent with what is known as the realist school, which holds that the principal aim of U.S. foreign policy should be to shape the foreign policy of other governments, not their internal political arrangements.
This debate was intense and prolonged. It actually started before the Berlin Wall was torn down, when pro-democracy protests erupted in the spring of 1989 in Beijing’s Tiananmen Square. Voices across the political spectrum urged President George H.W. Bush to support the students and to severely sanction China’s communist government, but he resisted. He thought that U.S. pressure would serve only to alienate leaders with whom we needed to work in meeting a growing number of regional and global challenges.