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  [Sejong Focus] A New Security Architecture for the Post-Extended Deterrence Era — A Proposal for the 'Middle Power 5 (MP5)' Security Consultative Mechanism among Korea, Japan, France, UK, & Germany

  2026-02-24 조회수 : 2,925 Seong-Chang CHEONG

  In this paper, 'MP5 (Middle Power 5)' refers to a proposed security consultative mechanism comprising five nations: Korea, Japan, Franc...

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  [Sejong Focus] China’s Export Controls on Dual-Use Items to Japan and Implications for South Korea

  2026-02-19 조회수 : 7,449 Byung Chul LEE

  In early 2026, the security and economic environment in East Asia is entering a phase of structural tension. Following remarks made by ...

• (Brief 2026-07) From Confrontation to Managed Stability in ROK-China Relations: The Lee Jae-myung Administration’s Policy Shift Toward China and an Assessment of the ROK-China Summit

  2026-02-12 조회수 : 2,433 Jae-hung CHUNG

  From Confrontation to Managed Stability in ROK-China Relations: The Lee Jae-myung Administration’s Policy Shift Toward China and an Asses...

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  [Sejong Focus] Post-New START: Toward a New Era of Nuclear Arms Competition?

  2026-02-12 조회수 : 3,613 Sang Hyun LEE

  The U.S.–Russia New Strategic Arms Reduction Treaty(New START) expired on February 5, 2026. This marks the end of the New START Treaty,...

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  [Sejong Focus] Strategy and Roadmap for ROK-France Cooperation on Nuclear-Powered Submarines: LEU-Based Naval Integration and a Mutually Beneficial Partnership Model

  2026-02-10 조회수 : 6,376 Seong-Chang CHEONG

  South Korea’s development of nuclear-powered submarines has a far longer history than is generally recognized. In 1994, when the first ...

• (Brief 2026-05) Key Elements of the 2026 U.S. National Defense Strategy and Policy Implications

  2026-02-09 조회수 : 3,679 Beomchul SHIN

  Key Elements of the 2026 U.S. National Defense Strategy and Policy Implications Beomchul SHINbcshin@sejong.orgPrincipal Research FellowS...

• (Brief 2026-04) Deployment of U.S. Strategic Assets on the Korean Peninsula in the Nuclear Era: Problems and Policy Alternatives 

  2026-02-04 조회수 : 3,743 Seong-Whun CHEON

  Deployment of U.S. Strategic Assets on the Korean Peninsula in the Nuclear Era : Problems and Policy Alternatives Seong-Whun CHEONdr.cheo...

• (Brief 2026-03) International Law Assessment and Policy Implications of the U.S. Operation to Apprehend President Maduro

  2026-02-03 조회수 : 3,342 Beomchul SHIN

  International Law Assessment and Policy Implications of the U.S. Operation to Apprehend President MaduroBeomchul SHINbcshin@sejong.orgPri...

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  [Sejong Focus] U.S.–Europe Relations Through the Lens of U.S. Strategic Documents and the Greenland Issue: A Fissure in the Alliance or a Realignment?

  2026-02-03 조회수 : 3,382 Sungwon LEE

  It has been one year since the second Trump administration took office. At the outset of the administration, the foremost foreign polic...

• (Brief 2026-02) War Beyond the Military: Sweden's Total Defence and Its Implications for the Republic of Korea

  2026-01-30 조회수 : 1,982

  War Beyond the Military: Sweden's Total Defence and Its Implications for the Republic of Korea Jeong-kyu LEEjklee87@mofa.or.krVisiting ...