Türk - An Overview
Even more Turkish enlargement to the west and around the Caspian Sea saw them dominate the western steppes and its men and women and increase this frontier down to the Caucasus in which they also shared a border Using the Sasanians. Khusrow is noted at time for bettering the fortifications on possibly facet from the Caspian, Bāb al-Abwāb at Derbe