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 Turkmenchay was an agreement between Qajar Iran and the Russian Empire, which concluded the Russo-Persian War (1826–1828). It was second of the series of treaties signed between Qajar Iran and Imperial Russia that forced Persia to cede or recognize Russian influence over the territories that formerly were part of Iran.
Signing ceremony of the treaty
Persian payment of indemnity in Tabriz
Treaty of Turkmenchay Cannon in Military Museum of Tehran
"Treaty of Turkmanchay" memorial medals. Museum of History of Azerbaijan, Baku.
![Ethnic groups in the Caucasus in 1897[citation needed]](https://upload.wikimedia.org/wikipedia/commons/thumb/8/84/Ethnic_population_of_the_Caucasus_according_to_the_Russian_census_of_1897.JPG/640px-Ethnic_population_of_the_Caucasus_according_to_the_Russian_census_of_1897.JPG)
