In August of 1976, a single act of violence in the Korean Demilitarized Zone pushed the Cold War to the brink.

Two American officers were killed—not in battle, but while trimming a tree.

What followed was one of the most extraordinary shows of force in modern military history. No shots fired. No warnings given. Just overwhelming power.

This is the story of how the United States responded with chainsaws, bombers, aircraft carriers—and a message so clear it echoed across the world.

This is Operation Paul Bunyan.