美国发动关税战，成为新外交杠杆？美媒：要求韩国提高国防预算

Group 1 - The United States is leveraging tariffs as a new diplomatic tool, pressuring South Korea to make concessions in various areas, including defense spending [1] - The U.S. has demanded South Korea increase its defense budget from 2.6% of GDP to 3.8%, effectively forcing South Korea to allocate more funds for defense [1] - The U.S. is also pushing for an increase in the cost-sharing for U.S. troops stationed in South Korea, with a demand of $1 billion for 2024 [3] Group 2 - The U.S. is adopting an isolationist approach, prioritizing its own interests, which includes demanding higher defense spending from South Korea and Japan [5] - South Korea's increased defense budget will benefit the U.S. as it purchases more military equipment, such as the F-35A fighter jets [5] - Japan is also under pressure to increase military spending and has committed to purchasing more U.S. weapons, indicating a deep military partnership [7] Group 3 - Despite the potential for increased tariff revenue, the U.S. is facing a significant national debt exceeding $37 trillion, highlighting a fiscal crisis [8] - The U.S. is trapped in a cycle of fiscal deficits, leading to the necessity of issuing more debt, which could have severe implications for the economy [8]