SEOUL, South Korea (AP) — South Korea on Monday expressed hopes for resumption of diplomacy between the U.S. and North Korea to ease animosities on the Korean Peninsula, hours after U.S. President Donald Trump said he ordered annual U.S. military exercises with South Korea to be scaled back.

Trump cited his good relationship with North Korean leader Kim Jong Un for the decision. The announcement baffled many in South Korea, a key U.S. ally in Asia where national security is a top priority due to threats from nuclear-armed North Korea.

The 11-day, summertime Ulchi Freedom Shield exercises began Monday morning as scheduled and it wasn't known which parts of the training were being downsized.

North Korea did not immediately respond to the announcement. North Korea previously threatened strong responses to the U.S.-South Korean exercises, which it views as an invasion rehearsal.

Experts say Trump's step signals his willingness to reengage with Kim, but the North Korean leader, now emboldened by his advancing nuclear arsenal and expanding military cooperation with Russia, won't likely return to talks unless he is assured of serious U.S. concessions.

Trump orders military to ‘substantially reduce’ drills

Trump said in a social media post that the exercises 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.

Trump instructed Defense Secretary Pete Hegseth to “substantially reduce” the exercises, he said, adding that he recently asked South Korean President Lee Jae Myung if they would join the U.S. in the “denuclearization” of Iran, “and they said, ‘No thanks!’”

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

The trust many South Koreans have in the U.S. has eroded following a tariff war instigated by Trump’s administration and his transactional approach to security.

South Korea hopes for talks between US and North Korea

Lee's presidential office said later Monday that South Korea hopes “friendly relationship” between Trump and Kim would lead to “meaningful dialogue” between the U.S. and North Korea and start discussions on promoting peace and stability on the Korean Peninsula. It said that South Korea will make necessary diplomatic efforts for that.

South Korea and the U.S. are closely discussing practical and military contributions that can be made to restore freedom of navigation in the Strait of Hormuz, according to South Korea's presidential office, which said the countries have been closely coordinating over their joint military drills and readiness.

Lee is a liberal who espouses improved ties with North Korea. Since taking office last year, his government has taken proactive steps to improve ties with North Korea, including turning off front line loudspeakers that blared K-pop music and world news and banning activists from flying balloons carrying propaganda leaflets toward North Korea.

On Saturday, Lee offered to hold talks to formally end the 1950-53 Korean War, which ended with an armistice, not a peace treaty.

But North Korea has shunned any talks with South Korea and the U.S. since Kim's high-stakes nuclear diplomacy with Trump broke down in 2019.

Kim has since used the long-running diplomatic stalemate with the U.S. and South Korea to expand his nuclear and missile arsenals by accelerating weapons tests and ramping up production of nuclear materials. He also has bolstered his diplomatic credentials by aligning with Russia over its war against Ukraine and taking steps to deepen cooperation with China.

In September 2025, Kim said he held “good personal memories” of Trump but suggested he could only resume talks with the American president if the U.S. drops “its delusional obsession with denuclearization” of North Korea.

Experts say Kim likely aims to win major concessions like extensive sanctions relief in return for limited denuclearization steps.

“Trump’s recent social media posts about Kim Jong Un suggest a willingness to reengage, but North Korea is busy profiting from Russia’s war against Ukraine while modernizing its own military,” said Leif-Eric Easley, a professor at Ewha University in Seoul.

Downsizing the U.S. and South Korean drills “can damage alliance coordination, slow the process of South Korea taking on greater responsibility for its own defense, and weaken deterrence against possible conflicts in Asia,” Easley said.

Military drills test tactics and anger North Korea

South Korea's military earlier said the Ulchi Freedom Shield exercises this year would be similar to previous years in scale, with about 18,000 South Korean soldiers taking part.

The U.S. military said the drills would incorporate lessens from recent conflicts such as North Korea's battlefield experiences in the Russia-Ukraine front, while including a live-fire exercise to test joint precision targeting and maneuver, a wet gap crossing and distribution of prepositioned military equipment.

North Korea's Foreign Ministry on Friday accused the U.S. and South Korea of plotting more provocative drills this year and vowed to respond with “a new level of a deterrent.” Earlier this month, North Korea fired two ballistic missiles into the sea in a likely protest of the drills.

This is not the first time Trump has sought to suspend the drills. After his first summit with Kim in 2018, Trump unilaterally announced the suspension of the U.S.-South Korean summertime exercises, calling them “very provocative” and “tremendously expensive.”

Kim Dong-yub, a professor at the University of North Korean Studies in Seoul, said North Korea feels less urgency to return to talks with the U.S. and South Korea now than when it entered talks with its rivals in 2018, but is unlikely to completely ignore Trump's overture.

He predicted North Korea will likely say it has noted Trump's post but will wait for further action showing the U.S. intends to drop hostilities against North Korea.