Cold War Crossroads: 1975-1991

1975 opens with the sound of rotors lifting from Saigon. The last helicopter images loop on televisions and in briefing rooms. Vietnam ends for the United States with a retreat, not a victory parade, and the lesson is immediate: history does not stop when a war stops. In Cambodia, the Khmer Rouge marches into Phnom Penh, empties the city, and turns ideology into a machine. In Laos, a quiet revolution seals another border. The Cold War pauses only long enough to redraw its rules.

Across Europe, the Helsinki Accords are signed. The document recognizes borders and promises human rights language that dissidents will later use like a crowbar. Leaders call it detente. Intelligence services call it a new set of vulnerabilities. The handshake is real, but so is the suspicion beneath it.