Maritime power refers to a nation's ability to use its naval forces and maritime resources to protect its interests at sea. This includes the capacity to project military strength, secure trade routes, and maintain a presence in international waters. Countries with strong maritime power often have advanced navies, merchant fleets, and strategic ports. A key aspect of maritime power is the ability to influence global trade and economics. Nations like the United States and China invest heavily in their naval capabilities to ensure the safety of shipping lanes and to assert their influence in regions like the South China Sea.