sentences:  For some of the key counter-attacks during Russia’s Brusilov Offensive, Bruchmüller directed the 76 artillery batteries of "Heeresgruppe" "von Linsingen".In July 1917, he commanded 134 batteries during the counter-attack that recovered Tarnopol from the Russians, after its loss during the Kerensky Offensive.Surprise was essential for creating maximum disruption, so Bruchmüller adopted the Pulkowski Method, for bombardments without the customary registration fire.