South Korea's First Vice Foreign Minister Kim Hong-kyun, center, attends a trilateral meeting with United States Deputy Secretary of State Kurt Campbell and Japan's Vice Foreign Minister Masataka Okano at the Foreign Ministry in Seoul Wednesday, Oct. 16, 2024. (Jung Yeon-je/Pool Photo via AP)

Japan's Vice Foreign Minister Masataka Okano, right, attends a trilateral meeting with South Korea's First Vice Foreign Minister Kim Hong-kyun, unseen, and United States Deputy Secretary of State Kurt Campbell, unseen, at the Foreign Ministry in Seoul Wednesday, Oct. 16, 2024. (Jung Yeon-je/Pool Photo via AP)

South Korea's First Vice Foreign Minister Kim Hong-kyun, center, attends a trilateral meeting with United States Deputy Secretary of State Kurt Campbell, unseen, and Japan's Vice Foreign Minister Masataka Okano, unseen, at the Foreign Ministry in Seoul Wednesday, Oct. 16, 2024. (Jung Yeon-je/Pool Photo via AP)

United States Deputy Secretary of State Kurt Campbell attends a trilateral meeting with South Korea's First Vice Foreign Minister Kim Hong-kyun, unseen, and Japan's Vice Foreign Minister Masataka Okano, unseen, at the Foreign Ministry in Seoul Wednesday, Oct. 16, 2024. (Jung Yeon-je/Pool Photo via AP)

South Korea's First Vice Foreign Minister Kim Hong-kyun, right, shakes hands with United States Deputy Secretary of State Kurt Campbell during their meeting at the Foreign Ministry in Seoul Wednesday, Oct. 16, 2024. (Jung Yeon-je/Pool Photo via AP)

South Korea's First Vice Foreign Minister Kim Hong-kyun, center, poses for photos with United States Deputy Secretary of State Kurt Campbell, right, and Japan's Vice Foreign Minister Masataka Okano during their trilateral meeting at the Foreign Ministry in Seoul Wednesday, Oct. 16, 2024. (Jung Yeon-je/Pool Photo via AP)