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At close · Thu, Jul 30, 2026
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Rimpac 2026 highlights faster integration among US-led allies

The exercise ran June 24 to July 31, with South Korea and Japan holding top maritime command roles and Vice Admiral Jeffrey Jablon citing integration “from day one”.

Japan and South Korea are playing prominent roles in this year’s Rim of the Pacific (Rimpac) military exercises led by the United States, renewing speculation that the two allies could move past historical differences and deepen defense cooperation. According to the South China Morning Post, Rimpac is being held in waters off Hawaii and is the world’s largest maritime exercise.

This year’s Rimpac includes participation from 30 nations, with more than 30,000 troops, various aircraft, and a large mix of surface ships and submarines. The drills run from June 24 to July 31, and include South Korea’s Rear Admiral In-ho Kim as commander of the combined forces maritime component and Japan’s Rear Admiral Takuo Kobayashi as vice-commander of the combined task force.

At a virtual briefing on Wednesday, US Vice Admiral Jeffrey Jablon, commander of the combined task force, said the multinational force integrated quickly for Rimpac 2026. He also attributed early cohesion to a leadership structure that placed Chile, South Korea, Canada, and Japan in key command roles.

The report notes that Japan and South Korea’s participation comes as the two traditional US allies still disagree and occasionally clash over their difficult history covering Tokyo’s rule over the Korean peninsula from 1910 to 1945.

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