 Nyorera kupfuurira kweiyi ndima - Mukupera kwema1930, Soviet Union yakanga isingachagutsikani nechinhu chaivapo muukama hwayo nenyika dzakazvimirira dzeFinland, Estonia, Latvia, Lithuania, Poland neRomania. Ikoku kwakauya somuuyo wechinjo mumutemo wokunze weSoviet. Chibvumirano cheMolotov-Ribbentrop chakapa mukana mukuru wokudzorera matunhu eUmambo hweRussia akarasika munguva yenhamo yeOctober Revolution neRussian Civil War. Somugumisiro wechibvumirano ichi, musi wa1 September, vaGermany vakapinda muPoland vachibva kumadokero. Apo vaPoland vakanga vava pedyo nokukundwa uye hurumende yePoland yakabva munyika, musi wa17 September Mauto Matsvuku akapinda muPolandkubva kumabvazuva kuti vatorezve nzvimbo dzinogarwa zvikurukuru navanhu vorudzi rweBelarusian navaUkraine. 