The Nine-Dash Line refers to a demarcation used by China to outline its territorial claims in the South China Sea, encompassing a vast area rich in resources and strategic maritime routes. This line, based on historical maps, overlaps with claims from several Southeast Asian nations, including the Philippines, Vietnam, and Malaysia. The strategic importance of this region lies in its significant natural resources, such as oil and natural gas, and its vital sea lanes that facilitate major global trade. Control over the South China Sea would not only bolster China’s economic and strategic position but also enhance its naval capabilities. The territorial disputes have led to tensions and conflicts, making it a focal point for regional security and international diplomacy.