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U.S. Forces Korea Chief Declares Peninsula Central to Indo‑Pacific Strategy

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Brunson’s Honolulu Remarks Emphasize Korean Strategic Value Gen. Xavier Brunson addressed a closed‑door session of the Honolulu Defense Forum on Jan 12‑13, 2026, asserting that the Korean Peninsula is a pivotal element of U.S. security in the Indo‑Pacific region. He described Korea as “central” to the emerging strategic triangle that includes Japan and the Philippines. Brunson warned that viewing the peninsula as an isolated outpost would limit power projection and undermine deterrence. The remarks were released in an excerpted briefing by USFK [1].

First Island Chain Cited as Core Deterrence Perimeter Brunson linked Korea’s importance to the First Island Chain, a security line extending from Japan through Taiwan to the Philippines. He urged Seoul and its allies to actively safeguard this perimeter, calling it a “key axis” for regional deterrence. The commander highlighted how the chain amplifies collective defense capabilities across the arc. Washington’s broader Indo‑Pacific strategy frames the chain as essential to containing coercive actions in the area [1].

Sideline Meetings Reinforce Tri‑Lateral Cooperation On the forum’s sidelines, Brunson held talks with Japanese Defense Minister Shinjiro Koizumi and Philippine Armed Forces Chief Gen. Romeo Brawner. The three officials exchanged assessments of maritime threats and coordinated joint training initiatives. Brunson praised the combined defense posture with South Korea as “incredible,” citing daily collaboration as a force multiplier. These engagements underscore a deepening security partnership among the three nations [1].

East‑Up Map Proposed to Reframe Regional Priorities Brunson advocated adopting an “east‑up” map orientation that places the eastern arc at the top of strategic displays. He argued this perspective better reflects Korea’s depth, Japan’s technological reach, and the Philippines’ access to southern sea lanes. The map is intended to guide future force deployments and resource allocations. The proposal signals a shift toward visualizing the region’s security architecture from a forward‑looking angle [1].

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Timeline

Dec 15, 2025 – Gen. Xavier Brunson tells a National Defense University audience that the Korean Peninsula is the “first chapter” of U.S. Indo‑Pacific strategy, calling it a hinge between the Asian continent and Pacific sea lanes and stressing forward‑postured deterrence and alliance modernization amid North Korea’s growing ties with Russia [5].

Dec 29, 2025 – Speaking at a Seoul forum, Brunson frames South Korea as a proactive, not merely reactive, security actor, linking the stance to the 2024 U.S. National Security Strategy’s call to defend the First Island Chain and highlighting trilateral training with Japan and the Philippines as a way to complicate adversary planning [3]; he warns that North Korea’s deepening military partnership with Russia—including munitions‑for‑technology exchanges and a constitutional rewrite that labels the South its primary foe—represents a long‑term strategic shift that the alliance must counter [4].

Jan 1, 2026 – At the ROK‑U.S. Combined Policy Forum, Brunson declares Korea the “central axis” of regional stability, proposes a Northeast Asia Combatant Command headquartered in Seoul to streamline U.S. command structures, and cautions that U.S. forces at Osan Air Base could be perceived by Beijing as an “adjacent force” capable of immediate effects, underscoring the need for democratic oversight of any expanded role [2].

Jan 12‑13, 2026 – During a closed‑door Honolulu Defense Forum, Brunson reiterates Korea’s centrality to Indo‑Pacific security, promotes a strategic triangle of South Korea, Japan and the Philippines and an “east‑up” map to prioritize the First Island Chain, and holds sideline talks with Japanese Defense Minister Shinjiro Koizumi and Philippine Armed Forces Chief Gen. Romeo Brawner to coordinate regional deterrence and maritime security [1].

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