The fortification of the Dvaleti valleys from the north was of great importance for Georgia Kingdoms. After the Mongol invasions in XIII century Dvaleti was inhabited by Ossetian refugees from the north.
Fortifying the Dvaleti valleys from the north was crucial to the Georgia Kingdoms' defense. Following Mongol invasions in the 13th century, Dvaleti became inhabited by Ossetian refugees from the north.