USFK commander stresses expanded role for US troops in Korea against broader regional threats

U.S. Forces Korea (USFK) Commander Gen. Xavier Brunson speaks during a press conference at U.S. Army Garrison Humphreys in Pyeongtaek, Gyeonggi Province, Friday. Courtesy of USFK

PYEONGTAEK, Gyeonggi Province — U.S. Forces Korea (USFK) Commander Gen. Xavier Brunson on Friday stressed the "strategic flexibility" of his troops in response to an increasingly complex security environment in Northeast Asia, amid rising speculation that USFK's mission could expand beyond deterring North Korea.

In his first press conference with local reporters since taking command in December 2024, Brunson called modernizing the South Korea-U.S. military alliance essential to keeping it "ready, relevant and able" to respond to evolving threats in the region.

"What’s being asked of Korea is to be stronger against the DPRK, that we might have the flexibility as we modernize our alliance so that we could go do other things," Brunson said during the hour-long briefing at the USFK headquarters in U.S. Army Garrison Humphreys in Pyeongtaek, Gyeonggi Province. DPRK stands for the Democratic People's Republic of Korea, North Korea's official name.

He likened the concept of strategic flexibility to redeploying a U.S. Patriot missile battery from South Korea to the Middle East. In April, the U.S. military temporarily moved the missile defense system from the Korean Peninsula to support operations against Yemen's Houthi rebels, marking a rare relocation of USFK assets to the Middle East.

"That is strategic flexibility — the ability to be able to place your forces in space and time and need. That is what we seek to always be able to do," the Army four-star general said.

"My job is to help solve problems to maintain peace in this region, in particular, Northeast Asia. But more specifically, I would speak to the entirety of the Indo-Pacific, because we have capabilities here that are unlike any place else."

The remarks were widely seen as suggesting that, under the principle of strategic flexibility, assets or some of the 28,500 U.S. troops stationed in South Korea could be redeployed to other regions in certain circumstances.

The issue is expected to be high on the agenda as Seoul and Washington prepare for the first summit between President Lee Jae Myung and U.S. President Donald Trump in Washington later this month.

A Washington Post report on Sunday (local time) cited internal U.S. government documents stating that the U.S. floated the idea of requiring South Korea to openly support flexible operation of USFK during last month's tariff negotiations, showing an increased likelihood of the issue being discussed between Lee and Trump.

A CH-47 Chinook helicopter takes off from U.S. Army Garrison Humphreys in Pyeongtaek, Gyeonggi Province, Thursday. Yonhap

USFK's strategic flexibility, framed within the increasingly often-cited concept of "alliance modernization," is expected to be a key issue at the upcoming leaders’ summit. The discussions come amid mounting pressure from Washington for Seoul to play a larger role in supporting America's broader security goals in the Indo-Pacific, particularly in response to China's growing assertiveness.

For Seoul, expanding USFK's mission to broader regional security goals raises worries that its focus on deterring North Korea's nuclear threat could be diluted. Also, the prospect of U.S. forces on the Korean Peninsula becoming involved in a potential contingency in Taiwan would complicate South Korea's delicate balancing act between Washington and Beijing.

Regarding security threats faced by the allies, Brunson acknowledged that while North Korea remains "the closest alligator to the boat," or the most immediate threat, other security challenges are emerging.

"We have a nuclear-armed adversary who’s north of the border, an increasing involvement of Russia along with the DPRK, and also the Chinese and the threat they pose to a free and open Indo-Pacific," he said.

In this context, the commander described the concept of alliance modernization as "a rational look" to reassess the allies' defense posture in light of unprecedented strategic conditions.

Meanwhile, Brunson told reporters that adjustments to the upcoming annual South Korea-U.S. Ulchi Freedom Shield (UFS) joint military exercise were made following mutual discussions with South Korean defense officials.

The USFK commander's rare press conference came a day after a joint announcement by South Korea and U.S. military officials that the annual exercise will run from Aug. 18 to 28.

U.S. soldiers from the 1st Stryker Brigade Combat Team of the 4th Infantry Division take part in a rotation ceremony at Camp Casey in Dongducheon, Gyeonggi Province, June 18. Yonhap

However, plans for the drills have already raised questions after officials confirmed that half of the field training exercises would be postponed until September, citing extreme heat. The official joint statement on this year's UFS omitted direct mention of North Korea, marking a departure from past statements that typically highlighted Pyongyang's nuclear threats.

These developments have fueled speculation that the drills may have been adjusted as the Lee administration seeks rapprochement with the North. Pyongyang has long condemned UFS as a rehearsal for invasion.

"We’ve made some adjustments to the exercise, but we will still exercise fully because of the need to remain ready," Brunson said.

"I feel comfortable with the decisions that were made, and that I was a part of," he added, noting the changes were discussed in advance with South Korea’s Defense Minister Ahn Gyu-back and Joint Chiefs of Staff Chairman Adm. Kim Myung-soo.

Regarding Brunson's remarks, Korea's Ministry of National Defense said Sunday it had nothing to comment about the issue for now and the U.S. side has not made any formal requests about it to the ministry.