Yet the officers of B-59 had had no contact with Moscow and only knew of negotiations from American radio. Around midday on 27 October, Captain Savitsky, believing the two superpowers were at war, ordered the launch of a T5 nuclear missile: ‘Prepare [nuclear] torpedo tube 1 and 2 for firing!’ But his commander, Akhipov, using the sub as a command centre, overruled him and convinced him to surface, where an American ship flashed its searchlights in a friendly gesture. Savitsky understood and ordered: ‘Stop preparations for firing.’ It was the closest the world came to nuclear war.