after his Chief of Staff, General Paul Grünert and the corps commander General Günther von Pannewitz, were sacked for ordering the XVII Corps to withdraw to the third position. Falkenhayn ordered a "strict defensive" at Verdun on 12 July and the transfer of more troops and artillery to the Somme front, which was the first strategic success of the Anglo-French offensive. By the end of July, finding reserves for the German defence of the Somme caused serious difficulties for Falkenhayn, who ordered an attack at Verdun intended to pin down French troops. The Brusilov Offensive continued and the German eastern armies had to take over more of the front from the Austro-Hungarians when Brody fell on 28 July, to cover Lemberg. Russian attacks were imminent along the Stochod river and the Austro-Hungarian armies were in a state of disarray. Conrad von Hötzendorf, the Austro-Hungarian Chief of the General Staff, was reluctant to take troops from the Italian front, when the Italian army was preparing the Sixth Battle of the Isonzo, which began on 6 August.