After decades of American global engagement, the concept of “restraint” is having its moment, and understandably so. Thirty years after the collapse of the Berlin Wall, Americans are weary of foreign misadventures, whether undertaken by neoconservatives or liberal interventionists, and they want more attention and resources devoted to challenges at home. The national security establishment may still endorse U.S. primacy, backed by a global network of alliances, the forward deployment of American troops, “onshore balancing” in Europe and Asia, and democracy promotion around the world. The public is more circumspect, preferring a restrained internationalism. Political leaders have begun to take […]