Mezue ahịrịokwu na-esonụ: N'oge mwakpo ndị Germany wakporo Poland na 1939, obere ndị agha nke battalion anọ ndị agha n'okpuru Ọchịagha Konstanty Plisowski na-agbachitere obodo ahụ megide Ọchịagha Heinz Guderian nke XIX Panzer Corps. Mgbe ụbọchị anọ nke ọgụ kpụ ọkụ n'ọnụ gasịrị, ndị agha Poland lara azụ na ndịda na Septemba 17. Ndị Soviet wakporo Poland n'otu ụbọchị ahụ. N'ihi ya, ndị agha Soviet Red Army banyere n'obodo ahụ na ngwụcha Septemba 1939 na-eso Protocol Nzuzo nke Molotov-Ribbentrop Pact, na nkwonkwo
Ndị agha Nazi na ndị agha Soviet mere ngagharị iwe na September 22, 1939. Ọ bụ ezie na ndị Belarus na-ele ya anya dị ka ijikọghachi mba Belarus n'okpuru otu mpaghara (BSSR n'oge ahụ), ndị Poland na-ele ya anya dị ka ụbọchị mgbe obodo ahụ furu efu. N'oge nchịkwa Soviet (1939<unk>41), ndị Poland jidere, gbuo ma chụga ndị mmadụ na Siberia na Kazakh Soviet Socialist Republic.