"Ottoman Empire" . "150 guns" . . . "Russian Caucasus Army" . "Third Army" . . "78,000" . . . . . "338 guns" . . . . . "130,000 infantry" . "Erzurum Fortress Artillery Regiment" . . . . . . "1916-01-10" . . . "Erzurum Offensive" . . . . . . "Battle of Erzurum" . . . . "Erzurum offensive" . "Russian victory" . . . "Erzurum offensive" . . . . . "17,000 (2,300 killed)" . . "1916-02-16" . . . . . . .