 Nyorai kupfuurira kweiyi ndima - Pakati paOctober 24 naNovember 23, 1939, chiverengero chavasungwa vehondo vePoland 42 492 vakaendeswa kubva kumisasa yeKozelsk nePutyvl mhiri kwemutsetse weNazi-Soviet wokuparadzanisauye akaiswa mumaoko evaGermany. Vose vari vaviri Gestapo neNKVD vaikarira kubuda kwokuramba kwePoland uye vakakurukura nzira dzokubata nadzo nemibato yepachivande yevaPoland. Nokukurumidza pashure pomusangano wacho, Soviet NKVD yakatanga kuunganidza mashoko akatungamirira kukuparadzwa kwaKatyn kwakaitwa muchirimo cha1940. 