America’s unparalleled wealth and democratic values creates global stability and gives newly liberated countries a chance to succeed. This acts as a counterbalance to authoritarian regimes like Russia and China.

For critics of American power, the best way for the United States to cope is for it to retrench its position in the world, divest itself of overseas obligations that others ought to handle, and serve, at most, as a distant offshore balancer. These critics would grant China and Russia their own regional spheres of interest in East Asia and Europe and focus the United States’ attention on defending its borders and improving the well-being of Americans. But there is a core of unrealism to this “realist” prescription: it doesn’t reflect the true nature of global power and influence that has characterized most of the post–Cold War era and that still governs the world today. The United States was already the only true global superpower during the Cold War, with its unparalleled wealth and might and its extensive international alliances. The collapse of the Soviet Union only enhanced U.S. global hegemony—and not because Washington eagerly stepped in to fill the vacuum left by Moscow’s weakness. Instead, the collapse expanded U.S. influence because the United States’ combination of power and democratic beliefs made the country attractive to those seeking security, prosperity, freedom, and autonomy. The United States is therefore an imposing obstacle to a Russia seeking to regain its lost influence.

What has happened in eastern Europe over the past three decades is a testament to this reality. Washington did not actively aspire to be the region’s dominant power. But in the years after the Cold War, eastern Europe’s newly liberated countries, including Ukraine, turned to the United States and its European allies because they believed that joining the transatlantic community was the key to independence, democracy, and affluence. Eastern Europeans were looking to escape decades—or, in some cases, centuries—of Russian and Soviet imperialism, and allying with Washington at a moment of Russian weakness afforded them a precious chance to succeed. Even if the United States had rejected their pleas to join NATO and other Western institutions, as critics insist it should have, the former Soviet satellites would have continued to resist Moscow’s attempts to corral them back into its sphere of interest, seeking whatever help from the West they could get. And Putin would still have regarded the United States as the main cause of this anti-Russian behavior, simply because the country was strong enough to attract eastern Europeans.