In a move signaling closer military cooperation, the United States and South Korea have agreed to deepen collaboration on Seoul’s pursuit of nuclear-powered submarines. During talks on Monday, U.S. Under Secretary of Defense for Policy Elbridge Colby and South Korean Defense Minister Ahn Gyu-back emphasized the strategic importance of this partnership.
Colby’s visit to Seoul marks his first overseas trip in his current role and comes amid U.S. signals that South Korea is expected to take a more prominent role in deterring North Korea. The South Korean defense ministry described the discussions as a step toward enhancing Seoul’s ability to lead the defense of the Korean Peninsula while strengthening the security alliance between the two nations.
The Pentagon’s newly released National Defense Strategy notes a “more limited” U.S. role in deterring North Korea, putting South Korea at the forefront of regional security responsibilities. During the meeting, Ahn also urged faster progress on the transfer of wartime operational control to Seoul and called for closer coordination on alliance follow-up measures.
Colby praised South Korea as a “model ally” and acknowledged its commitment to increasing defense spending in line with broader U.S. regional strategy. Currently hosting approximately 28,500 U.S. troops, South Korea recently pledged to raise its defense spending to 3.5% of GDP—a move welcomed by both Colby and other U.S. officials as a significant step in strengthening deterrence.
Colby’s visit to Asia will also include a stop in Japan, underscoring Washington’s efforts to reinforce security partnerships in the region.
At its core, this growing cooperation reflects more than just strategy—it highlights shared responsibility, mutual trust, and a commitment to peace on the Korean Peninsula. In a world where regional tensions can quickly escalate, collaboration like this reassures citizens that their leaders are working together to protect the future.
