After declaration of Democratic Republic of Armenia (DRA), he organized volunteer units against the Ottoman army, and fought alongside those units. Declaration of Treaty of Batum was in diffuse as Andranik, was fighting against the Ottoman Empire with his army. He refused to accept the borders stated by the treaty. His activities were concentrated at the link between Ottoman Empire to Azerbaijan Democratic Republic at Karabakh, Zanghezur and Nakhichevan. Ozanian struck back at the Ottoman Fronts, Army of Islam.