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# 'No Thanks.' The Exercises Were Cut.
- URL: https://www.diplopolis.com/no-thanks-exercises-were-cut-south-korea-north-korea-iran-war/
- Published: 2026-08-17T04:30:00.000Z
- Updated: 2026-08-21T06:59:49.000Z
- Description: South Korea said no to the Iran war. Trump cut its joint military exercises — the drills designed to deter a nuclear North Korea he called unthreatening and respectful. The punishment pattern is complete.
- Author: Sunny Peter
- Tags: The Ledger, Southeast Asia, United States, South Korea, Iran war, US War on Iran

On Sunday, Trump called South Korean President Lee Jae Myung and asked whether his country would help in the Iran war. Lee said no. Trump's account: 'Wait a minute. We have 39,000 soldiers over there, guarding you from Kim Jong Un, your next-door neighbour, and you're not going to help us on a very easy military operation in Iran. That's strange.' The actual US deployment is 28,500 — a figure [Trump inflated to 39,000](https://www.nbcnews.com/politics/trump-administration/trump-orders-military-substantially-reduce-joint-exercises-south-korea-rcna592832?ref=diplopolis.com) in his Truth Social post. The United States has 28,500 troops permanently stationed in South Korea to deter a nuclear-armed neighbour technically still at war with Seoul.

On the same day, Trump directed Pete Hegseth to 'substantially reduce the Joint Military Exercises!' — [Ulchi Freedom Shield 2026](https://thediplomat.com/2026/08/trumps-exercise-cut-risks-turning-south-korea-us-alliance-readiness-into-a-bargaining-chip/?ref=diplopolis.com), the annual combined exercise designed to practise exactly the scenarios that 28,500 American troops are there to prevent. The exercises had already begun. Trump said it was too late to cancel, so he ordered reduction within the exercise itself: fewer participating US units, shorter tactical phases, lower sortie generation, fewer live-fire events, fewer combined activities. The deterrence value of a military exercise is proportional to the scenario it rehearses. Reducing the exercise reduces the rehearsal. Reducing the rehearsal reduces the signal.

The stated reason Trump gave was twofold. First: South Korea declined to assist in the Iran war. Second: North Korea has been 'unthreatening and respectful' during his presidency and the exercises send a signal that is 'totally inappropriate and hostile' toward Pyongyang. Those two justifications are not merely in tension. They are in contradiction. North Korea is the reason the 28,500 American troops are in South Korea. The exercises are there to deter North Korea. Trump is reducing the exercises because South Korea wouldn't help in a war against a third country, while simultaneously describing the country those exercises are designed to deter as non-threatening. The logic of deterrence requires the other party to believe the exercises are real. The president of the country conducting them has said they are inappropriate and hostile.

Kim Jong Un has not commented on the reduction. He has visited a new nuclear bomb fuel production facility. He has provided troops and missiles to Russia's war in Ukraine. He has ICBMs capable of reaching the continental United States. He called the US-Israel war on Iran proof that his country's decision to keep its nuclear weapons was correct — a judgment that is difficult to dispute. His state media published photographs of him watching a circus performance with his daughter on Monday. He and his daughter have been publicly and calmly present while the exercises designed to deter him were being cut.

The pattern the Iran war has established in its six months is now visible in its complete form. Spain refused to allow US forces to use its bases and had the Rota naval base placed under a Pentagon review. South Korea declined to join the war and had its joint military exercises cut. Both countries are being punished for refusing a war they had no treaty obligation to join, by having their own security commitments reduced. [The Hill noted](https://thehill.com/homenews/administration/6033853-trump-south-korea-military-exercises-iran/?ref=diplopolis.com) what other analysts confirmed: the move is the latest example of Trump turning against an ally in favour of a leader that previous administrations considered an adversary.

The exercises exist for a reason. The readiness they build is the readiness that makes deterrence credible. The credibility that makes deterrence credible is what the reduction diminishes. South Korea faces a nuclear-armed neighbour 50 kilometres from its capital. The exercises that practise deterring that neighbour are being cut because South Korea would not help in a war in the Persian Gulf. North Korea is watching. The circus photographs suggest Kim is not concerned.

Trump called South Korea's refusal strange. It is no stranger than being asked to send forces to the Persian Gulf to fight Iran while depending on American forces to protect you from a nuclear-armed neighbour that has been building new bomb fuel facilities. Lee said no thanks. Trump reduced the deterrent. The 28,500 American troops remain. The exercises that make them useful are smaller.