The Wawel group bore in its positions until 11 August, when - in face of lack of ammunition and possibility to continue combat - withdrew through underground drains into southern part of Śródmieście district of Warsaw. There it was included into the "Iwo" reserve battalion and took part in its military actions. Since the beginning of September, as part of the "Odstoja" battalion, it repelled Germans advancing along Aleje Jerozolimskie. There it endured until the capitulation of the Warsaw Uprising.
