Na 1 Septemba 1939, Germany wakporo Poland, na-amalite Agha Worldwa nke Abụọ na Europe, na 17 Septemba, na-esote Molotov<unk>Ribbentrop Pact, Poland wakporo Soviet Union. N'ikpeazụ, Poland kewara ọzọ <unk> n'etiti ike abụọ a <unk> ma nọrọ n'okpuru ọchịchị maka ọtụtụ n'ime agha ahụ. Ka ọ na-erule 1 Ọktọba, Germany na Soviet Union meriri Poland kpamkpam, ọ bụ ezie na gọọmentị Polish enyeghị aka n'ụzọ iwu, na Polish Underground State, nke dị n'okpuru gọọmentị Polish-na-agba ọsọ, e guzobere n'oge na-adịghị anya. N'October 8, Nazi Germany weghaara mpaghara ọdịda anyanwụ nke Poland tupu agha ahụ, na ebe fọdụrụ na mpaghara a na-achịkwa, guzobere Gọọmentị Ọchịchị.
Soviet Union