Trump orders Pentagon to scale back joint exercises with South Korea

President Donald Trump gestures as he boards Air Force One at Morristown Airport, Sunday, Aug. 16, 2026, in Morristown, N.J.

Julia Demaree Nikhinson/AP


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Julia Demaree Nikhinson/AP

WASHINGTON — President Donald Trump ordered the Pentagon on Sunday to scale back annual joint military exercises with South Korea, saying the ally declined to help with the war against Iran and citing his good relationship with North Korea’s Kim Jong Un.

Trump said in a social media post that the exercises, which began Monday, are not only costly but “send a signal that is totally inappropriate and hostile” to North Korea, which he said “has been unthreatening and respectful” during his time in the White House.

“Therefore, and based on the fact that it is too late to cancel, I have instructed Secretary of War, Pete Hegseth, to substantially reduce the Joint Military Exercises!” Trump wrote. The president added that he recently asked South Korea’s president if they would join the U.S. in the “denuclearization” of Iran, “and they said, ‘No thanks!'”

The move is the latest example of the president appearing to turn against an ally in favor of a leader that previous administrations have cast as an adversary. Trump and others in his administration have also railed against NATO allies over perceived lack of support for his war against Iran, even as they seek to confront an increasingly aggressive Russia in the Baltic region.

It is also a sharp turnaround from how his administration has viewed South Korea in recent months.

In May, Hegseth praised the longtime ally for its “commitment to increase defense spending” and its “leadership in assuming primary responsibility for the security of the Korean Peninsula” during a meeting at the Pentagon.

“It demonstrates alliance burden-sharing that all of America’s partners would do well to follow,” the defense secretary added.

What the US military says about the joint exercises

The 11 days of exercises involving 18,000 South Korean soldiers were designed to beef up readiness against North Korean threats.

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