America’s international position is distinguished by its alliance networks. Presidential candidates fear today’s dangerous world, but the United States is allied with every major industrialized power, save China and Russia. It is a position that Washington’s few potential adversaries must envy.
Yet as I pointed out in National Interest: “littering the globe with security commitments is costly. The U.S. must create a much bigger military to project force abroad to protect countries that often matter little for this nation’s security. Moreover, while policymakers hope to prevent war with treaty guarantees, the resulting tripwires ensure involvement if deterrence fails.”
Equally important, America’s involvement tends to turn friends and allies into dependents. The principle is the same as domestic welfare: Why should they do for themselves if they can get someone else to do so?