 Nyorai kupfuurira kweiyi ndima - Nhau yechiuto yeSoviet Union yakatanga mumazuva akatevera 1917 October Revolution yakaunza maBolshevik musimba. Muna 1918 hurumende itsva yakaumba Red Army, iyo yakazokunda vavengi vayo vakasiyana-siyana mukati meRussia Civil War ya191722. Makore 191821 akaona kukundwa kweRed Army muPolishSoviet War 191921 uye muhondo dzerusununguko rweEstonia191820, Latvia 191820 uye Lithuania 191819. Mauto matsvuku akapinda muFinland November 1939; akarwa Hondo yeKhalkhin Gol yaMaySeptember 1939 pamwe chete nemubatanidzwa wayo Mongolia vachipesana neJapan nenyika yayo yechiuto Manchukuo; yakashandiswa apo Soviet Union, muchibvumirano neNazi Germany, yakabatanidzwa mukupinda muPoland munaGunyana 1939, uye yakatora nyika dzeBaltic June 1940, Bessarabia JuneJuly 1940 uye Northern Bukovina JuneJuly 1940 kubva kuRomania. MuHondo yeNyika II Red Army yakava simba guru rehondo mukukunda Nazi Germany ndokukunda Manchuria. Pashure pehondo, rakapamba East Germany nenyika dzakawanda dziri pakati nepakati peEurope, idzo dzakava nyika dzeSatellite muSoviet bloc. 