Is America’s alliance system so quietly effective that politicians and voters fail to appreciate its importance in delivering the security they take for granted?

Charles A. Kupchan mines the nation’s past to uncover the ideological and political roots of ongoing changes in U.S. foreign policy, including the sources of Donald J. Trump's “America First” doctrin…

Paul J. Angelo provides the first headlining case studies of Plan Colombia and the Mérida Initiative.

American diplomacy is in shambles under Trump, but beneath the daily chaos is an erosion of the postwar order that is even more dangerous. Ivo Daalder and James Lindsay give us a chilling account of why things are worse than they seem.

The alliance between the United States and South Korea has endured through seven decades of shifting regional and geopolitical security contexts. Yet it now faces challenges from within. Domestic pol…

An illuminating account by Walter Russell Mead of the birth and rise of the global political and economic system that, sustained first by Britain and now by America, created the modern world.