Ngo Dinh Diem, president of Vietnam, is assassinated during a coup d’etat. People gather and cheer as tanks roll through the streets. A statue is torn down. New leaders General Duong Van Minh and Nguyen Ngoc Tho stand together. “The Cold War.” A mushroom cloud forms as the narrator says the east and west agreed to ban the testing of nuclear weapons in the atmosphere. Leading nuclear powers meet in Moscow to sign the treaty.