Hulton Archive/Getty Images German Foreign Minister Joachim von Ribbentrop and Josef Stalin standing behind Soviet Foreign Minister Vyacheslav Molotov as he signs the two countries’ nonaggression pact, Moscow, August 23, 1939 The Nazi foreign minister had lost his patience with the Poles. “You are stubborn on these maritime questions,” he told Polish diplomats in January 1939. “The Black Sea is al