United States President Trump ordered the Pentagon on Sunday to scale back joint military exercises with South Korea. In a social‑media post, he described the drills set to kick off this week as “cost‑prohibitive” and said they would send “wholly inappropriate and hostile signals” toward North Korea. Trump also cited South Korea’s refusal to assist Washington’s push for Iran’s denuclearization as one factor behind his decision.

Trump wrote: “Therefore, since it is too late to cancel, I have directed Secretary of War Pete Hegseth to sharply reduce the joint military exercises!”

He added he had recently asked South Korea’s President to join U.S.‑led efforts for Iranian denuclearization. “They said, ‘No thank you!’”

The Drills Were Originally Scheduled for 11 Days

The joint exercise was planned to run for eleven days, involving 18,000 South Korean troops. It was designed to boost combat readiness against threats from North Korea. According to U.S. military sources, U.S. and South Korean forces were set to conduct joint‑operations training under complex scenarios, including live‑fire drills to test combined precision strikes, manoeuvre capabilities, river‑crossing operations and distribution of pre‑positioned military hardware.

The U.S. military had previously stated the exercises “strengthen the alliance as a cornerstone of regional peace and security” and reaffirmed the “iron‑clad commitment between the United States and the Republic of Korea to defend their homelands”.

North Korea Issues Fresh Warning

One day before Trump’s announcement to curtail the drills, North Korea warned it would take “stern measures” against the United States and South Korea. It labelled the planned exercises a “rehearsal for an aggressive war” that aggravates regional instability. Such tough rhetoric is widely viewed as standard posturing by Pyongyang ahead of major US‑ROK military exercises.

Experts note North Korea has repeatedly leveraged allied military drills as justification for ramping‑up missile tests, expanding its arsenal and bolstering domestic support for leader Kim Jong‑un. During his first term, Trump held three meetings with Kim Jong‑un to discuss North Korea’s nuclear programme, most recently in 2019. Since returning to the White House, Trump has expressed willingness to resume those talks.

Trump Revives Call to Halt Drills

This is not Trump’s first attempt to end U.S.‑South Korea joint exercises. In his initial presidency, he once abruptly branded those drills “provocative”. After his Singapore summit with Kim Jong‑un in 2018, Trump told reporters: “We will be ending the war games, which will save us a tremendous amount of money, unless and until we see future negotiations not going as they should.”

Trump’s latest remarks show U.S.‑South Korea military cooperation is once‑again intertwined with Korean‑Peninsula dynamics, America’s external security commitments, and diplomatic frictions between Washington and Seoul.

For markets, such news generally shifts geopolitical‑risk sentiment and may prompt investors to reassess safe‑haven demand and defence‑sector expectations across ASIa.