a skirmish against the German 18th Infantry Division near the villages of Zamość and Żeromin, both near the town of Tuszyn. Withdrawing towards Andrespol, on September 8, the unit entered the battle of Wola Cyrusowa, where it covered the western and northern flanks of the entire army, withdrawing eastwards. The result of the day-long battle against the German 10th Infantry Division, was that the Volhynian Brigade suffered significant losses. As the sun set, the Poles withdrew to the other side of the Mroga river and then towards Chlebów, where it spent the several hours to reorganize. Due to the fast pace of German armoured assault, the brigade had to retreat further eastwards and on September 10, it reached the Kampinos Forest through Miedniewice, Szymanów and Kampinos. The brigade spent the following two days in the forests halfway between Warsaw and Modlin. It was joined by the retreating Nowogródzka Cavalry Brigade, and received some reinforcements, although it was already in bad shape. By September 13, both units started a counter-assault in the direction of the town of Mińsk Mazowiecki. By now the brigade, was reduced to less than 50% of its original strength, but managed to retake the village of Cyganka, and continue its counter offensive towards Choszczówka, but a German counter-attack broke its momentum and forced them to retreat. After the battle, the brigade ceased to exist as an organized force. The 21st Uhlan Regiment and the remnants of the 12th withdrew to Warsaw, where they fought in the defense of Warsaw until September 28, in the ranks of Roman Abraham's Combined Cavalry Brigade. The remaining forces of the brigade joined the forces of General Stefan Dąb-Biernacki's Northern Front and withdrew further eastwards, towards the Bug River. On September 22, near Sokółka they took part in the battle of Suchowola against the German 68th Infantry Division, and then in the battles of Krasnobród and Huta Różaniecka. Order of battle Headquarters 12th Podolian Uhlan Regiment (12. pułk ułanów podolskich) 19th Volhynian Uhlan Regiment (19. pułk ułanów wołyńskich im. gen. Edmunda Różyckiego) 21st Vistula Uhlan Regiment (21. pułk ułanów nadwiślańskich) 2nd Mounted Rifle Regiment (2. pułk strzelców konnych) 11th Sea Rifle Battalion (11. batalion strzelców) 2nd Gen. Józef Sowiński's Mounted Artillery Battalion (2. dywizjon artylerii konnej im. gen. Józefa Sowińskiego) 21st Armoured Detachment (21. dywizjon pancerny) 82nd Motorized AA Artillery Battery (82. bateria motorowa artylerii przeciwlotniczej) 4th Bicycle Infantry Squadron (4. szwadron