Eastern Armenia
Due to its strategic significance, the historical Armenian homelands of Western Armenia and Eastern Armenia was constantly fought over and passed back and forth between Safavid Persia and the Ottomans. For example, at the height of the Ottoman-Persian wars, Yerevan changed hands fourteen times between 1513 and 1737. Greater Armenia was annexed in the early 16th century by Shah Ismail I. Following the Peace of Amasya of 1555, Western Armenia fell into the neighbouring Ottoman hands, while Eastern Armenia stayed part of Safavid Iran, until the 19th century.