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US cancels joint marine drills with South Korea over Iran war-related force constraints

By Thomson Reuters Aug 24, 2026 | 12:52 AM

SEOUL, Aug 24 (Reuters) – The United States cancelled a joint amphibious landing drill scheduled for next month with South Korea, Seoul’s Marine ​Corps said on Monday, after Washington ‌cited constraints on the availability of U.S. forces due to the war in Iran.

The U.S. Marine Corps formally notified its South Korean counterpart in June that force availability would ‌be ​constrained for the division-level exercise, ⁠known as Ssangyong, ⁠a South Korean Marine Corps spokesperson told a press briefing.

The allies remain in close consultations on resuming the drills, the spokesperson said. He did ​not specify what measures might be taken to prevent future cancellations or to make up ⁠for lost training opportunities.

U.S. Forces ⁠Korea did not immediately respond to ​a request for comment.

The cancellation follows U.S. President Donald ​Trump’s surprise order to scale back a ‌separate annual joint military exercise that ended last Friday, citing the cost and Seoul’s refusal to take part in the Iran war.

Trump also wrote ⁠on his Truth Social platform that the Ulchi Freedom Shield drills sent “a signal that was totally inappropriate and hostile, ⁠to a ‌Country that, as long as Donald ⁠J. Trump has been President, has ​been ‌unthreatening and respectful.” Despite the reduction ​of the ⁠exercises, Pyongyang fired 10 short-range ballistic missiles last week and issued a statement denouncing the exercises.

North Korea has long condemned such joint exercises as rehearsals for invasion.

(Reporting by Heejin Kim and Joyce LeeEditing by ​Ed Davies)