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Trump Orders Major Cut to U.S.-South Korea War Drills as North Korea Watches
President Donald Trump has ordered the Pentagon to “substantially reduce” joint military exercises with South Korea, just as the annual Ulchi Freedom Shield drills began on August 17. Trump cited the cost of the exercises, Seoul’s refusal to support U.S. actions against Iran and his relationship with North Korean leader Kim Jong Un.
2nd Infantry Division/ROK-U.S. Combined Division Relinquishment of Command. U.S. Army photo by Pfc. Jungyo Jung
The order arrived at an unusual moment.
On August 17, U.S. and South Korean forces began their annual Ulchi Freedom Shield exercise, a major test of the alliance's ability to respond to a North Korean attack.
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Hours before the drills began, Trump said he had instructed Defense Secretary Pete Hegseth to substantially reduce U.S. participation.
Trump wrote that he was “not happy” the United States had agreed to participate, describing the exercises as costly and saying they sent an “inappropriate and hostile” signal to North Korea. He also pointed to his “very good relationship” with Kim Jong Un.
The timing was particularly significant because South Korea did not cancel the exercise.
The South Korean Joint Chiefs of Staff said the drills began as scheduled, while Seoul's presidential office said it was reviewing Trump's remarks and expressed hope that the relationship between Trump and Kim could eventually contribute to dialogue and stability on the Korean Peninsula.
The 2026 exercise is scheduled to run through August 27, with approximately 18,000 South Korean troops participating alongside U.S. forces and personnel from other United Nations Command countries.
The exercises are not simply ceremonial displays.
They combine computer simulations with field-based training designed to prepare the allies for a large-scale conflict. This year's scenarios include threats that have become increasingly important in modern warfare, including drones, GPS disruption and cyberattacks.
That makes the reduction particularly consequential.
North Korea has been developing its missile and nuclear programs while gaining battlefield experience through its military cooperation with Russia in Ukraine. U.S. and South Korean officials have warned that this experience could improve North Korean capabilities.
Pyongyang has nevertheless consistently described the annual exercises as preparations for an invasion.
Just days before the drills began, North Korea condemned the exercise and threatened a strong response. It had also recently conducted ballistic-missile launches, adding another layer of tension to the timing of Trump's announcement.
Trump's objections to the exercises are not entirely new.
During his first presidency, he suspended major U.S.-South Korean exercises after his 2018 summit with Kim. The drills were later resumed after diplomacy between Washington and Pyongyang stalled.
This time, however, Trump has offered another reason for his frustration: South Korea's position on the war with Iran.
Trump criticized Seoul for refusing to participate in U.S. efforts against Iran, linking the issue to the broader question of what Washington expects from its allies.
The financial issue is also longstanding.
The United States maintains roughly 28,500 troops in South Korea, and Trump has repeatedly pressed Seoul to contribute more toward the cost of the American military presence.
What remains unclear is exactly what will be cut.
Trump has ordered a substantial reduction, but neither Washington nor Seoul has publicly provided a detailed breakdown of which American forces, training events or scenarios will be removed.
That uncertainty matters because military exercises are designed not only to demonstrate strength but to identify weaknesses before a real conflict.
For South Korea, the drills test coordination with its most important military ally.
For the United States, they provide an opportunity to rehearse operations on a peninsula where North Korea possesses nuclear weapons, ballistic missiles, cyber capabilities and a large conventional military.
The immediate military posture therefore remains intact for the exercise now underway.
The larger question is what happens afterward.
If Trump's reduction becomes a permanent feature of U.S.-South Korean military planning, it could alter how Washington and Seoul prepare for a crisis and how North Korea interprets America's commitment to defending its ally.
For now, South Korea is continuing the drills while Washington considers how far Trump's order will go.
And across the border, Pyongyang is watching.
Editor's Note: Trump's order concerns the scale of future U.S. participation in joint exercises. The August 17 Ulchi Freedom Shield exercise began as scheduled, and the administration has not publicly detailed which specific activities will be reduced. The decision should therefore not be described as an immediate withdrawal of U.S. forces from South Korea or the end of joint military training.
