提及美韩同盟，谈到关税协商，李在明与特朗普通话20分钟

Core Points - The first phone call between South Korean President Lee Jae-myung and U.S. President Trump took place on the night of June 6, lasting approximately 20 minutes, where they discussed the importance of the Korea-U.S. alliance [1][3] - Both leaders praised each other's leadership and agreed to maintain close cooperation to advance the Korea-U.S. alliance, including coordination on tariff issues [3][5] - Trump invited Lee to visit the U.S., and Lee expressed the desire for frequent meetings between the leaders to coordinate on various issues [3][5] Summary by Sections Phone Call Details - The call was the first between Lee and Trump since Lee's inauguration, occurring at 10 PM and lasting around 20 minutes [1] - Lee thanked Trump for his congratulations and emphasized the significance of the Korea-U.S. alliance [1][3] Leadership and Cooperation - Both leaders commended each other's leadership capabilities and committed to fostering the development of the Korea-U.S. alliance [3] - They agreed to work towards a satisfactory resolution on tariff issues and to encourage visible outcomes in working-level negotiations [3] Future Engagements - Trump extended an invitation for Lee to visit the U.S., and Lee highlighted the special nature of the Korea-U.S. alliance, advocating for regular meetings between the two leaders [3][5] - There is anticipation regarding potential discussions on defense cost-sharing and tariff negotiations during their future interactions [5]