The last operational unit of the Polish Army, General Franciszek Kleeberg's Samodzielna Grupa Operacyjna "Polesie", surrendered after the four-day Battle of Kock near Lublin on 6 October marking the end of the September Campaign.
Ultima unitate operativă poloneză, Samodzielna Grupa Operacyjna "Polesie", a capitulat după o luptă de 4 zile la Kock, lângă Lublin, pe 6 octombrie.