Some to the east the Polish improvised "Kobryń" Infantry Division under Colonel Epler was ordered to retreat in tandem with Plisowski. After the Battle of Kobryń the division evaded encirclement and joined the forces of General Plisowski. The Polish forces were soon joined by the Podlaska Cavalry Brigade and together started to make their way towards Lwów and the "Romanian Bridgehead". Under command of General Franciszek Kleeberg they formed the bulwark of the remaining Polish Army, fighting effectively against both the Wehrmacht and Red Army until the Battle of Kock, that ended on 6 October 1939.