"c." In October 1939, the British Foreign Office notified the Soviets that the United Kingdom would be satisfied with a postwar creation of small ethnic Poland, patterned after the Duchy of Warsaw. An establishment of Poland restricted to "minimal size", according to ethnographic boundaries (such as the lands common to both the prewar Poland and postwar Poland), was planned by the Soviet People's Commissariat for Foreign Affairs in 1943–1944. Such territorial reduction was recommended by Ivan Maisky to Vyacheslav Molotov in early 1944, because of what Maisky saw as Poland's historically unfriendly disposition toward Russia and the Soviet Union, likely in some way to continue. Joseph Stalin opted for a larger version, allowing a "swap" (territorial compensation for Poland), which involved the eastern lands gained by Poland at the Peace of Riga of 1921 and now lost, and eastern Germany conquered from the Nazis in 1944–1945. In regard to the several major disputed areas: Lower Silesia west of the Oder and the Eastern Neisse rivers (the British wanted it to remain a part of the future German state), Stettin (in 1945 the German communists already established their administration there), "Zakerzonia" (western Red Ruthenia demanded by the Ukrainians), and the Białystok region (Białystok was claimed by the communists of the Byelorussian SSR), the Soviet leader made decisions that favored Poland.