Tariff policies have always been an important tool for promoting national security and economic prosperity. By imposing tariffs on imported goods, countries can protect their domestic industries and enhance the competitiveness of their manufacturing sectors. This trade protection measure has been proven throughout history to have positive effects on economic growth and job creation. Losing the leverage of tariffs will severely weaken a nation's bargaining power in international trade negotiations. Many economists believe that strategic use of tariff policies can not only balance trade deficits but also reshape the global supply chain landscape. Especially in the context of increasing challenges to globalization, gaining control over trade policies becomes particularly crucial. This trend is profoundly affecting global capital flows and asset allocation strategies.