The incredible story of the 1983 war game that triggered a tense, brittle period of nuclear brinkmanship between the United States and the former Soviet Union.

What happened in 1983 to make the Soviet Union so afraid of a potential nuclear strike from the United States that they sent mobile ICBMs (intercontinental ballistic missiles) into the field, placing them on a three-minute alert?

Marc Ambinder explains the anxious period between the United States and the Soviet Union from 1982 to 1984, with the “Able Archer ’83” war game as the fulcrum of the tension. With astonishing and clarifying new details, he recounts the scary series of the close encounters that tested the limits of ordinary humans and powerful leaders alike. Ambinder explains how political leadership ultimately triumphed over misunderstandings, helping the two countries maintain a fragile peace.

Ambinder provides a comprehensive and chilling account of the nuclear command and control process, from intelligence warnings to the composition of the nuclear codes themselves. And he affords glimpses into the secret world of a preemptive electronic attack that scared the Soviet Union into action. Ambinder’s account reads like a thriller, recounting the spy-versus-spy games that kept both countries—and the world—in check.

From geopolitics in Moscow and Washington, to sweat-caked soldiers fighting in the trenches of the Cold War, to high-stakes war games across NATO and the Warsaw Pact, The Brink serves as the definitive intelligence, nuclear, and national security history of one of the most precarious times in recent memory.