On 7 November, the Ottoman Third Army commenced its Caucasus offensive with the participation of the XI Corps and all cavalry units supported by the Kurdish Tribal Regiment. By 12 November, Ahmet Fevzi Pasha's IX Corps reinforced with the XI Corps on the left flank supported by the cavalry, began to push the Russians back. The Russians were successful along the southern shoulders of the offensive, where Armenian volunteers were effective and took Karaköse and Doğubeyazıt. By the end of November, the Russians held a salient into Ottoman territory along the Erzurum-Sarikamish axis.