In November 1914, he had the second battalion of the Armenian volunteers. At the Bergmann Offensive, the second battalion of the Armenian volunteers engaged in battle for the first time, near Bayazid. In the course of a bloody combat which lasted twenty-four hours, Dro, commander of the battalion, was seriously wounded. From that day to March of the following year, he remained in critical condition, but his battalion led into eleven battles in the neighborhood of Alashkert, Toutakh, and Malashkert, until Dro recovered and returned to resume the command. Kanayan had already become a popular military leader after the victories over the Ottoman Empire at the Caucasus Campaign.