Russian Armenia is the period of Armenian history under Russian rule from 1828, when Eastern Armenia became part of the Russian Empire following Qajar Iran's loss in the Russo-Persian War (1826–1828) and the subsequent ceding of its territories that included Eastern Armenia per the out coming Treaty of Turkmenchay of 1828.
Ethnic groups in the Caucasus in 1897[citation needed]
A Russian–Armenian volunteer unit during World War I.
Occupation of Turkish Armenia transferred to a civilian rule under Hakob Zavriev in 1917 by Ozakom of Russian Provisional Government, which Zavriev began to oversight of districts Trebizond Vilayet, Erzurum Vilayet, Bitlis Vilayet, and Van Vilayet.
Image: Ptolemy Cosmographia 1467 Central Europe
The Treaty of Gulistan was a peace treaty concluded between the Russian Empire and Qajar Iran on 24 October 1813 in the village of Gulistan as a result of the first full-scale Russo-Persian War. The peace negotiations were precipitated by the successful storming of Lankaran by General Pyotr Kotlyarevsky on 1 January 1813. It was the first of a series of treaties signed between Qajar Iran and Imperial Russia that forced Persia to cede the territories that formerly were part of Iran.
Northwestern Iran's borders before and after the treaty