The main German thrust in the sector came at the junction point between the 5th Army and its neighbour to the south, the 6th Army, and both the 5th and 6th Armies committed their mechanised forces quickly to try to stem the gap, but without success.
By 7 September the 5th Army was threatened with being split in two by the Second Army coming from the east and the Sixth Army's northern outflanking of Kiev.