A network of emerging professionals advancing U.S.-ROK-Japan trilateral cooperation through dialogue, research, and next-generation leadership initiatives.

Joined February 2026
Tune in at 7 PM EDT on June 4 (8 AM KST/JST on June 5) for our 2nd public webinar of the year! The focus of this webinar will be on public diplomacy and the role exchange programs play in promoting the trilateral relationship. youtube.com/watch?v=bZxbvn4y…
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U.S.-ROK-Japan Trilateral Next-Gen Study Group retweeted
ゴールデンウィーク前に中谷元元防衛大臣(@gen_nakatani)と面会し、共同代表を務める「日米韓次世代勉強会」(@TrilatNextGen)をご紹介させていただきました。日米韓防衛協力や日韓関係についてお話をしていただき、大変実りの多い時間となりました。本当にありがとうございました。
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Co-Founder Rintaro Nishimura (@RinNishimura), Deputy Director for Japan Kenji Yoshida, and Tatsuya Sugiyama met with former Japanese defense minister Gen Nakatani (@gen_nakatani) on April 28. They heard the minister's thoughts on trilateral and Japan-ROK defense cooperation.
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The Study Group is honored to announce that Professor Ken Jimbo (@kenj0126) has joined the senior advisory board. His addition adds depth to our group's Japan-based advisory board team.
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The Study Group is proud to release its first quarterly newsletter for the 2026 calendar year. The newsletter highlights the breadth and scope of our activities in the first few months of this year. More to come in 2026!! linkedin.com/feed/update/urn…
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The Study Group is honored to announce that Dr. Ramon Pacheco Pardo (@rpachecopardo) has joined the senior advisory board. His addition to the board opens the door to the Study Group expanding its insights and network in Europe.
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Yesterday, co-Founder Rintaro Nishimura (@RinNishimura) and Japan Country Director Hasumi Tani introduced the Study Group to the Japan Innovation Party's (Ishin) International Bureau Director Kaneko Michihito and Rep. Ichimura Koichiro.
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Tokyo-based members met with Deputy Chief of Mission (DCM) Aaron Snipe at the U.S. Embassy in Tokyo (@usembassytokyo) last week to discuss areas of mutual interest. The Study Group is proud to have originated from the State Department's Young Trilateral Leaders program.
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The Study Group co-hosted the "U.S.-ROK-Japan Next-Gen Salon" with @USEmbassySeoul on March 19, convening dozens of Korea-based emerging leaders and policy practitioners across sectors and generations. Participants shared diverse insights into key issues shaping trilateral ties.
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Co-Founder Rintaro Nishimura (@RinNishimura), Hana Anderson, and Kenji Yoshida met with Rep. Akihisa Shiozaki of Japan's ruling Liberal Democratic Party last week to introduce the Study Group and hear his thoughts on bilateral relations and technology/AI cooperation.
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Co-Founder @RinNishimura and member Kenji Yoshida met with former Japanese Prime Minister Shigeru Ishiba last week to introduce the Study Group and hear a first-hand account on how the former leader handled the trilateral relationship during his tenure.
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A Study Group delegation led by Co-Founder Jinwan Park (@JinPark1107) visited the U.S. State Department this week to discuss the strategic evolution of the trilateral relationship with officials from the Bureau of East Asian and Pacific Affairs.
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Members in Tokyo had an opportunity to meet with former Japanese foreign and defense minister Kono Taro (@konotaromp) at his Diet office. After Co-Founder @RinNishimura introduced the Study Group, Rep. Kono gave members firsthand insight into Japan-ROK & trilateral relations.
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The Study Group announces that Dr. @ZackCooper, Senior Fellow at @AEI has joined our senior advisory board!! Dr. Cooper took part in our webinar last week. We are very excited to have him on board as an advisor! linkedin.com/feed/update/urn…
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