In the aftermath of the terrorist attacks on September 11, 2001, one question has been on the mind of every American: “How did this happen?” PublicAffairs and Foreign Affairs came together to publish…

A forty-year effort to prevent the spread of nuclear weapons is breaking down, and the threat that terrorist groups will acquire them is growing. In Fatal Choice, Ambassador Richard Butler argues tha…

If Russia veers toward instability or a more severe dictatorship under President Vladimir Putin, the threat to its neighbors could be severe. Such a scenario would also present serious challenges for…

Read an excerpt of The Ideas That Conquered the World. At the dawn of the twenty-first century, three ideas dominate the world: peace as the preferred basis for relations between countries, democr…

How and why did NATO, a Cold War military alliance created in 1949 to counter Stalin's Soviet Union, become the cornerstone of a new security order for post-Cold War Europe? Why did the United States…