Thanassis Cambanis

In my latest Internationalist column for The Boston Globe, I write about a group of critics I think of as “new isolationists” — cosmopolitan and balanced advocates for a modest, demilitarized, less interventionist American foreign policy. They’re urbane, they care about the world, but they think America meddles far too much — a level of interference that hurts America as much as the rest of the world.

These old-school realists come at the question from different perspectives but they all share in common a willingness to challenge the received wisdom about America’s approach to the world, and to question whether militaristic interventionism objectively has helped or harmed America’s economy and security. Their critique has matured in the decade since 9/11, and the time is ripe, I think, for us to reconsider their arguments.

There are few ways to get Democrats and Republicans to agree faster than by bringing up national security. Should America invest in a dominant, high-tech military? Should it spend time, treasure, and lives intervening in distant lands and protecting allies? Almost always, the short answer is a resounding yes. Ever since President Franklin Delano Roosevelt browbeat the skeptics and brought America into the Second World War, the country’s foreign policy has been robustly — some would say aggressively — interventionist.

Disagreements have flared only over the details: where to intervene and with what tools. Especially after the collapse of the Soviet Union, both right and left took for granted America’s position as lone superpower — and that securing America required complex engagements in global conflicts. There’s mainly a difference in tone between “liberal order building,” Princeton grand strategist G. John Ikenberry’s proposal for how America should reestablish its global position, and conservative historian Robert Kagan’s unapologetic demand for American “primacy.”

This consensus in the world’s leading economy has underwritten an unparalleled military that can strike anywhere in the world. The United States has invested trillions of dollars in projecting power, and immeasurable amounts of political capital fulfilling what it considers its rightful, if exhausting, role. Its policy makers have assumed that America must police disputes from the Straits of Taiwan to the Straits of Hormuz. The next 10 largest militaries combined do not equal America’s in size, expense, or power.

But all that glitter obscures a glaring failure, according to an increasingly energized phalanx of critics. While their prescriptions vary, they all believe America suffers from imperial overreach, fighting abroad to the detriment of prosperity at home. MIT’s Barry Posen has been developing “the case for restraint,” calling for the “stingy” use of military power. Boston University historian Andrew Bacevich argues in his latest book, “Washington Rules: America’s Path to Permanent War,” that America has become a national security state addicted to military interventions that justify its vast defense apparatus. And the University of Chicago’s John Mearsheimer, in the latest issue of the National Interest, charges that American interventionism creates more threats than it neutralizes. They, and a handful of other thinkers, say that America needs to stop meddling far and wide and concentrate on its forgotten, core interests — if it is not already too late. “The results have been disastrous,” says Mearsheimer.

Read the rest of the column here.