李在明抵美，美媒先嗨了：发生冲突时，韩国可以帮美国对付中国

Group 1: Security and Defense - South Korean President Lee Jae-myung's visit to the U.S. includes discussions on security, defense spending, and trade with President Trump [1][2] - There are concerns that U.S. demands for increased strategic flexibility may weaken South Korea's security and increase its involvement in potential conflicts in the Taiwan Strait [6] - The U.S. is pressuring South Korea to expand the scope of the U.S.-South Korea Mutual Defense Treaty to include the entire Indo-Pacific region [5][6] Group 2: Economic and Trade Relations - South Korea has committed to investing $350 billion in the U.S. and purchasing $100 billion worth of liquefied natural gas and other energy products, securing a 15% tariff rate [8][9] - The U.S. is expected to demand specific investment plans from South Korea during Lee's visit, with implications that the $350 billion investment will primarily benefit the U.S. [8][9] - South Korea's Hanwha Group has acquired a shipyard in Philadelphia, which is seen as a key part of U.S.-South Korea cooperation in shipbuilding and trade negotiations [11][12] Group 3: Shipbuilding Industry - South Korea is the second-largest shipbuilding nation globally, holding a 22% market share in commercial shipbuilding, significantly higher than the U.S.'s less than 1% [11][12] - The U.S. is looking to leverage South Korean shipbuilding capabilities to address its own production delays and enhance its naval strength in the Indo-Pacific region [12][13] - South Korean shipbuilders are exploring opportunities to participate in U.S. naval ship repairs, with potential regulatory changes being discussed to facilitate this collaboration [13]