The U.S. military service chiefs discuss U.S. defense priorities around the world and the state of the American armed forces. The Robert B. McKeon Endowed Series on Military Strategy and Leadershi…

CFR experts discuss President Joe Biden's trip to Europe this week and the NATO Summit in Vilnius, Lithuania.

President Vladimir Putin of Russia recognized the independence of two territories in eastern Ukraine, portions of which are controlled by Russia-backed separatists, and has ordered the deployment of …

Panelists discuss the breadth and depth of sanctions and divestment, the current state of the Russian economy, and whether any of these mechanisms will affect Russian President Vladimir Putin’s calcu…

The alliance between the United States and South Korea has endured through seven decades of shifting regional and geopolitical security contexts. In The United States–South Korea Alliance: Why It May…

Meghan L. O’Sullivan, director of the Belfer Center for Science and International Affairs and the Jeane Kirkpatrick professor of the practice of international affairs at Harvard University, leads the…