The Viceroyalty of the Caucasus was abolished by the Russian Provisional Government on March 18, 1917, and all authority, except in the zone of the active army, was entrusted to the civil administrative body called the Special Transcaucasian Committee, or Ozakom. Hakob Zavriev was instrumental in having Ozakom issue a decree about the administration of the occupied territories. This region was officially identified as "the land of Western Armenia" and transferred to a civilian rule under Zavriev, who oversaw districts Trebizon, Erzurum, Bitlis, and Van.[20] Each of the districts had their own Armenian governor, with Armenian civil officials.