特朗普下令，真正的较量开始，美国选好主战场，要与中国一决高下

Core Viewpoint - The article discusses the escalating trade tensions between the United States and China under Trump's administration, highlighting the use of tariffs and other measures as tools for national security and economic strategy. Group 1: Trade Measures and Tariffs - In February 2025, Trump announced tariffs to address the fentanyl issue and labeled China as a major competitor, prompting businesses to adjust supply chains to mitigate risks [1] - By April, tariffs were raised to 145% due to claims of unfair trade practices, leading to significant cost increases for U.S. companies and retaliatory tariffs from China on U.S. agricultural products [1] - In May and June, the tariff war intensified, with the U.S. implementing new tax rates around 20%, while China retaliated with tariffs up to 125% on energy and electric vehicles [3] Group 2: Economic Impact - The U.S.-China trade volume dropped by 15% in the first half of the year, with Trump stating that tariffs were necessary to disrupt China's industrial upgrades [3] - The U.S. agricultural sector faced a $2 billion loss in exports due to retaliatory tariffs, while American farmers began to see a recovery in shipments after agreements were made [4][6] - The energy sector also experienced a decline in liquefied natural gas sales due to the trade tensions [3] Group 3: Geopolitical Strategy - Trump's administration shifted focus to Latin America, signing security agreements with Brazil to counter Chinese investments, while also reducing military presence in the Middle East [4][10] - The U.S. aimed to strengthen alliances with allies like Japan and the Netherlands to limit China's access to advanced technology, particularly in semiconductor manufacturing [3][6] - The National Security Strategy report identified China as a primary adversary, emphasizing the need for technological and economic protection [8] Group 4: Technology and Innovation - The U.S. continued to impose restrictions on high-performance technology exports to China, with companies like Nvidia facing political hurdles despite attempts to resume exports [8][12] - Chinese companies accelerated their domestic technology development, with Huawei and Alibaba focusing on local hardware for AI models [3][12] - The ongoing tech war has led to a global competition in semiconductor technology, with both nations investing heavily to maintain their technological edge [12]