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U.S. Diplomat Reaffirms U.S.-South Korea Security Alliance in Seoul

The visit lays the groundwork for President Lee's first one-on-one meeting with President Trump at the upcoming G7 summit

Kim Hee-sang (L), deputy foreign minister for bilateral economic affairs, and Sean O'Neill, senior bureau official of the U.S. State Department's Bureau of East Asian and Pacific Affairs, talk in the foreign ministry building in Seoul on June, 13, 2025, in this photo provided by the ministry. (PHOTO NOT FOR SALE) (Yonhap)
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Overview

  • Sean O'Neill, acting head of the State Department's East Asian and Pacific Affairs bureau, arrived in Seoul for his first visit since President Lee's inauguration.
  • He stressed making the alliance always fit for purpose to defend both countries against evolving security challenges.
  • Separate meetings with Vice Minister Cho Koo-rae and Deputy Foreign Minister Kim Hee-sang focused on coordinating responses to North Korean nuclear threats and deepening economic ties.
  • U.S. officials pressed South Korea to increase its defense burden-sharing for stationing about 28,500 American troops on the peninsula.
  • Both governments agreed to strengthen communication across all levels and to continue coordinating policy on tariffs.