By seizing or threatening to capture Verdun, the Germans anticipated that the French would send all their reserves, which would then have to attack secure German defensive positions supported by a powerful artillery reserve. In the Gorlice–Tarnów Offensive (), the German and Austro-Hungarian Armies attacked Russian defences frontally, after pulverising them with large amounts of heavy artillery. During the Second Battle of Champagne ( autumn battle) of , the French suffered "extraordinary casualties" from the German heavy artillery, which Falkenhayn considered offered a way out of the dilemma of material inferiority and the growing strength of the Allies. In the north, a British relief offensive would wear down British reserves, to no decisive effect but create the conditions for a German counter-offensive near Arras.