The oldest military maps in the world were among the treasures unearthed at Mawangdui, and they indicate the deployment of formidable defenses at the two areas where the kingdom of Nanyue bordered upon the fiefdom of the marquis of Dai.
從馬王堆出土、世界最早的《駐軍圖》標示中，可發現兩國交界之處，軍防嚴密，並且廣設烽火台。