The United States faces a multipolar world with bad actors and threats in theaters around the globe. Adjusted for inflation, the United States spends far less on its military than it did throughout the Cold War, yet the military is being asked to do just as much or more as it did then. Since the 1990s, American policymakers have not aligned U.S. military missions and spending with strategy—wasting resources on wars of choice. A foreign policy in which the United States does everything, everywhere, at once, would require a massive increase in defense spending that is not politically feasible. Europeans must take primary responsibility for Ukraine and for their own security, as the United States, by necessity, shifts resources to the Indo–Pacific.