East Asia: Facts and Analytics 2025/4
DOI: 10.24412/2686-7702-2025-4-56-69
URL: PDF
Author
| Domakhina Yulia A. |
| Institute of China and Contemporary Asia of the Russian Academy of Sciences |
| ORCID: 0009-0007-3182-8934 |
| E-mail: domakhina_julia@mail.ru |
Abstract
The article analyzes the role of North Korea’s nuclear missile potential as a factor in the development of security cooperation between Japan, the US, and the Republic of Korea in 2023–2025. Positive trends along Tokyo–Washington–Seoul axis emerged in 2022, and the 2023 Camp David summit elevated the trilateral partnership to a new level and laid the foundation for its transformation into an institutionalized and comprehensive alliance. The parties justified the formation of the Japan – USA – ROK triangle by the need to strengthen stability in the Asia-Pacific region and counter “common challenges”, including those from the DPRK. To contain the so-called North Korean threat, the allies have developed retaliatory measures, including coordinating sanctions policy and expanding defense and diplomatic cooperation. The author examines the results of the triangle’s policy on countering the DPRK in 2023–2025 and describes the dynamics of the trilateral partnership after the change of administrations in the US and South Korea. The author concludes that the activities of Washington and its allies create a risk of rising tensions in the Asia-Pacific region. Despite this, the trends in the development of the triangle’s policy in the second half of 2025 signal the parties’ commitment to further deepening security cooperation.
Keywords
North Korea, the US, South Korea, Japan, sanctions, security, missile-nuclear program, trilateral cooperation
Support
The research was carried out within the state assignment of the Ministry of Science and Higher Education of the Russian Federation (project No. FMSF-2024-0016 “Japan in the Asia-Pacific region: politics, security, economy”).
Acknowledgments
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For citation
Domakhina Yu.A. (2025). Problema raketno-yadernogo potentsiala KNDR v treugol’nike Yaponiya–SShA–RK v 2023–2025 gg. [DPRK’s nuclear missile potential problem in the Japan – USA – ROK triangle in 2023–2025]. Vostochnaya Aziya: fakty i analitika [East Asia: Facts and Analytics], 7
(4): 56–69. (In Russian). DOI 10.24412/2686-7702-2025-4-56-69
References
Davydov O.V. (2023). Vneshnepoliticheskaya strategiya administratsii Yun Sok Yёlya i amerikanoyuzhnokoreyskiy al’yans [Yoon Suk-Yeol administration’s foreign policy strategy and the U.S.–ROK alliance]. Mirovaia ekonomika i mezhdunarodnye otnosheniia [World Economy and International Relations], 1 (67): 68–79. (In Russian). DOI: 10.20542/0131-2227-2023-67-1-68-79
Domakhina Yu.A. (2023). KNDR kak faktor natsional’noy bezopasnosti Yaponii [DPRK as a factor of Japan’s national security]. Vostochnaya Aziya: fakty i analitika [East Asia: Facts and Analytics], 4: 6–21. (In Russian). DOI: 10.24412/2686-7702-2023-4-6-21
Istomin I.A. (2023). Vashington–Seul–Tokio v doktrine Baydena [Washington–Seoul–Tokyo in the Biden doctrine]. Rossiya v global’noy politike [Russia in Global Affairs], 3 (21): 208–212. (In Russian). DOI: 10.31278/1810-6439-2023-21-3-208-212
Kalinin R.R. (2025). Yadernaya problema Koreyskogo poluostrova pri Donal’de Trampe: perspektivy i vyzovy 2025–2029 [The nuclear issue of the Korean Peninsula under Donald Trump: prospects and challenges 2025–2029]. Mezhdunarodnaya zhizn’ [International Affairs], 4 (22): 40–49. (In Russian).
Toloraya G.D. (2025). Geopoliticheskiye treugol’niki v «poyase sosedstva» v Vostochnoy Azii: vyzovy dlya Rossii [Geopolitical triangles in the «Neighborhood Belt» in East Asia: challenges for Russia]. Mir peremen [The World of Transformations], 2: 85–110. (In Russian). DOI: 10.51905/2073-3038_2025_2_85
Vorontsov A.V. (2021). Chto budet na Koreyskom poluostrove v blizhaysheye desyatiletiye? [What will happen on the Korean peninsula in the next decade?]. Mezhdunarodnaya zhizn’ [International Affairs], 1: 122–132. (In Russian).
Curtis L., Wright E., Kelley H. (2024). Forging a new era of U.S.–Japan–South Korea trilateral cooperation. Center for a New American Security. URL: https://www.cnas.org/publications/reports/forging-a-new-eraof-u-s-japan-south-korea-trilateral-cooperation (accessed: Jul 15, 2025).
Park J., Mochizuki M. (2024). The U.S.–Japan–South Korea trilateral partnership: pursuing regional stability and avoiding military escalation. Quincy Brief, 54: 1–33. URL: https://quincyinst.org/research/the-u-sjapan-south-korea-trilateral-partnership-pursuing-regional-stability-and-avoiding-military-escalation/ (accessed: Jul 12, 2025).
Tamaki T. (2020). It takes two to Tango: the difficult Japan–South Korea relations as clash of realities. Japanese Journal of Political Science, 21 (1): 1–18. DOI: 10.1017/S1468109919000161
Dates
| Received Date: | 2025.09.17 |
| Accepted Date: | 2025.10.06 |
| Publication Date: | 2025.12.23 |