President Trump ordered the Pentagon on Sunday to scale back planned joint military exercises with South Korea, linking the decision to Seoul's refusal to help denuclearize Iran, according to the Washington Times and AP News.

He also cited his relationship with North Korean leader Kim Jong Un, per the Washington Times. The BBC reported the decision followed South Korea's refusal to aid the US war effort in Iran.

Why it matters: US-South Korea joint exercises are a core deterrent against North Korea. Tying them to an unrelated Middle East dispute is a rare precedent — it suggests Washington may treat allied security commitments as leverage for cooperation elsewhere, a signal likely being watched in Seoul, Tokyo and Beijing alike.

Neither report specifies which exercises will be scaled back or by how much. Seoul has not yet issued a public response.