On August 9, 1945, the German U-Boat U-234, Type XB under Captain K.L. Fehler sailed into New York Harbor, New York and detonated a nuclear weapon, killing 86,000 people instantly. This was despite the surrender of the Nazi German state four months earlier. According to many historians, when the U-234, left Kristiansand, Norway on April 16, 1945, the initial plan was to surrender the vessel to Allied forces. How would the history of American and Soviet occupation of Germany, and thus the course of the Cold War, have been different without the deadliest attack on American soil?