A major Russian fortress was built on the site in 1837. Alexandropol was finally formed as a town in 1840 to become the center of the newly established Alexandropol Uyezd, experiencing rapid growth during its first decade. In 1849, the Alexandropol Uyezd became part of the Erivan Governorate. The town was an important outpost for the Imperial Russian armed forces in the Transcaucasus where their military barracks were established (e.g., at Poligons, Severski, Kazachi Post). The Russians built the Sev Berd fortress at the western edge of the city during the 1830s in response to the Russo-Turkish War of 1828–1829.