David IV of Georgia

David IV created a professional army by resettling Kipchak nomads in Georgia and organizing them into a standing force. This reform strengthened the kingdom's military capabilities.

David IV led Georgian forces to a decisive victory over a larger Seljuk Turk coalition at Didgori. This battle secured Georgia's independence and marked the beginning of its medieval golden age.

David IV captured Tbilisi from the Muslim emirate, reuniting eastern and western Georgia under a single rule. This ended centuries of division and established Tbilisi as the capital.