On 1 September many of the crews of I./StG 77 flew four or five combat missions. With assistance from I./StG 2 and I./KG 77, first group assisted in the destruction of the Łódź Army's cavalry brigades (Wołyńska Cavalry Brigade). The attacks offered close air support to the mechanised XVI Corps. II./StG 77 attacked Wieluń, destroying the town in the belief a cavalry force was there. The entire wing was involved in Offensive counter air operations against airfields.