ThinkTankWeekly

Simulating Southeast Asias Nuclear Security Crisis Responses

IISS | 2026-03-19 | china_indopacific

Topics: China, Indo-Pacific, Nuclear, United States

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English Summary

An IISS crisis simulation found that Southeast Asian nations lack the 'strategic bandwidth' and specialized literacy required to manage a major nuclear-security escalation involving great powers. Centered on a 2031 scenario of a missing nuclear submarine, the exercise highlighted that regional states rely on the SEANWFZ Treaty as a baseline but struggle to bridge the divide between China and the AUKUS partnership. Consequently, the report recommends that ASEAN enhance domestic inter-agency coordination and utilize the ADMM-Plus framework to more effectively address nuclear-related regional security threats.

中文摘要

國際戰略研究所 (IISS) 的一場危機模擬發現,東南亞國家缺乏應對涉及大國重大核安全升級所需的「戰略頻寬」與專業素養。該演習以 2031 年核潛艦失蹤的場景為中心,凸顯出區域國家雖以《東南亞無核武器區條約》(SEANWFZ) 為基準,但在彌合中國與 AUKUS 夥伴關係的分歧方面仍感吃力。因此,報告建議東協應加強國內跨部門協調,並利用東協國防部長擴大會議 (ADMM-Plus) 架構,以更有效地應對與核相關的區域安全威脅。

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