 Sezvo Britain neFrance zvairatidzika kuva zvisina kuda kuzvipira kusonganirano neSoviet Union, Stalin akaona chibvumirano chiri nani navaGermany. Musi waMay 3, 1939, Stalin akatsiva gurukota rake rezvekunze raiva nechokuMadokero rainzi Maxim Litvinov naVyacheslav Molotov. Muna May 1939, Germany yakatanga kutaurirana neSoviet, ichikumbira kuti Eastern Europe igovaniswe pakati pemasimba maviri. Stalin akaona ikoku somukana zvose zviri zviviri wokuwedzera ndima norugare rwechinguvana neGermany. Muna August 1939, Soviet Union yakasaina chibvumirano cheMolotov-Ribbentrop neGermany, chibvumirano chokusarwisa chakakurukurwa naMolotov uye gurukota rezvekunze reGermany Joachim von Ribbentrop. Vhiki rimwe gare gare, Germany yakapinda muPoland, ichikonzera United Kingdom neFrance kuzivisa hondo kuGermany. Pana September 17, Red Army yakapinda kumabvazuva kwePoland, zviri pamutemo kudzorera nhevedzano pakati pokuparara kwehurumende yePoland. Musi wa 28 Gunyana, Germany neSoviet Union vakatsinhanisa dzimwe dzenzvimbo dzavo dzavakanga vachangobva kukunda; Germany yakawana nzvimbo dzeLublin Province uye chikamu cheWarsaw Province apo maSoviet akawana Lithuania. Chibvumirano cheGermany neSoviet Frontier chakasainwa nguva pfupi pashure pacho, Stalin aripo. Nyika mbiri idzi dzakaramba dzichitengeserana, dzichiparadza kurambidzwa kweGermany neBritain. 