Minister of Foreign Affairs of Nazi Germany Joachim von Ribbentrop arrived in Moscow on 23 August 1939. On the same day, People’s Commissar for Foreign Affairs Vyacheslav Molotov held talks with him in Stalin’s presence. Late at night, under the Nazi banner obtained from a Moscow motion picture studio (!) with great difficulty, the parties signed what is now known as the Molotov-Ribbentrop Pact. Those who did not understand what it was possible to negotiate with the Nazis were left scratching heads because the secret protocol appended to the 10-year Treaty of Non-Aggression was concealed even from the deputies of the Supreme Soviet of the USSR who ratified the document. Stalin and Hitler “secretly” divided Poland and the Soviet Union extended its sphere of influence over Finland, Bessarabia and the Baltic States.