1828-1829 & 1877-1878 Russian-Turkish wars were ended by the Russia’s victory,

"With the victory of Russia, the 1828-1829 and 1877-1878 dated Russian-Turkish wars have ended as well. Thus, the next division of the territory of Armenia received its final formulation, Eastern Armenia became part of the Russian Empire, and Western Armenia, which formed the main territory of Armenia and populated with the overwhelming majority of Armenians, remained almost unchanged within the Ottoman Empire. This division lasted until the First World War. How did the story of the Armenian population proceed in the absolutely contradictory socio-cultural world, Russian-Christians and Turkish-Muslims included? It is in Eastern Armenia, which is part of Russia, that the number of Armenians has constantly increased. because of the many Western Armenian refugees; This is where they developed in various fields. Finally, it is here that later, already at the beginning of the 20th century, they restored their statehood.". (AGBU History, Y. Melkonian p. 12-13).