The Soviet government announced it was acting to protect the Ukrainians and Belarusians who lived in the eastern part of Poland, because the Polish state – according to Soviet propaganda – had collapsed in the face of the Nazi German attack and could no longer guarantee the security of its own citizens.
Den sovjetiske regering bekendtgjorde, at den handlede for at beskytte de ukrainere og hviderussere som boede i den østlige del af Polen, fordi den polske stat var brudt sammen under det tyske angreb og ikke længere kunne sikre dets egne borgeres sikkerhed.