This photo shows US Joint Chiefs of Staff Chairman Gen. Dan Caine speaking during a news conference at the Pentagon near Washington, DC, on June 22. (AP-Yonhap)
This photo shows US Joint Chiefs of Staff Chairman Gen. Dan Caine speaking during a news conference at the Pentagon near Washington, DC, on June 22. (AP-Yonhap)

The top military officers of South Korea and United States were set to meet in Seoul on Thursday to discuss their countries' bilateral alliance amid speculation over a possible change in the role of US troops stationed here.

The meeting between Joint Chiefs of Staff Chairman Adm. Kim Myung-soo and his US counterpart, Gen. Dan Caine, comes a day ahead of their regular meeting with their Japanese counterpart, Gen. Yoshihide Yoshida, that will take place at the South's JCS headquarters Friday, according to officials.

A military official said the trilateral gathering is expected to focus on security cooperation between the three countries and North Korea's military threats.

Caine's visit marks the first visit to South Korea by the highest-ranking US military officer since his predecessor, CQ Brown, visited Seoul in November 2023.

Thursday's meeting comes at a time when the US has been pressing allies to hike their defense spending to 5 percent of their gross domestic product.

It also comes amid continued speculation that Washington may cut the 28,500-strong US Forces Korea or redefine its role to prioritize deterring Chinese threats.

During a Senate confirmation hearing in April, Caine said he will "assess the US military presence in Japan and South Korea, and make recommendations" to the US defense secretary and the president, when asked about how US troop reductions in South Korea and Japan would affect the security situation in the Indo-Pacific should such reductions proceed.

Kim, meanwhile, is expected to hold bilateral talks with Yoshida on the sidelines of the Trilateral Chiefs of Defense (Tri-Chod) meeting later in the day.

The three leaders last met for the Tri-Chod gathering in Tokyo last year. (Yonhap)