 Nyora kuenderera kweiyi ndima - Munguva yekuunganidzwa kwePoland kwa1939, kusati kwapinda muPoland, iro divi rakaunganidzwa ndokutumirwa kunharaunda yekumadokero kweCichanów, kwaifanirwa kuumba chengetedzo yePoland Modlin Army ichidzivirira Modlin Fortress uye nzira dzekuchamhembe dzeWarsaw. Ichitungamirirwa naColonel Teodor Wyrwa-Furgalski, boka racho raifanira kupinda muhondo kana vaGermany vakapfuura nomumiganhu yePoland. Zvisinei, musi waGunyana 2, divi rakatumirwa kunharaunda yeMława, kwaifanira kutsigira maPolish mauto airwa muhondo yeMława. 