SEOUL, October 02 (AJP) - South Korean President Lee Jae Myung was unequivocal on Armed Forces Day - Seoul should reclaim wartime operational control of its military, a goal he wants to achieve before his five-year term ends in 2030.
“There is no country in the world that relies on another person or another country for its military command authority,” Lee said at a luncheon following the ceremony marking the 78th Armed Forces Day, in a country that maintains roughly 450,000 active-duty troops and about 2.6 million reservists to defend against North Korea — a combined force of just over 3 million people, equivalent to roughly 5.9 percent of its population of about 51.6 million.
The declaration came at a fraught moment. South Korea had linked explosions that wounded three of its soldiers in the Demilitarized Zone to North Korean mines, and the U.N. Command had determined that an armistice violation had occurred. Pyongyang denied responsibility.
The incident was a sobering reminder of the security realities confronting Seoul’s pursuit of greater military autonomy.
Doubts about the reliability of the United States under President Donald Trump have strengthened the case for South Korea to assume greater responsibility for its defense.
Yet North Korea’s expanding nuclear arsenal and deepening military ties with Russia make American intelligence, reinforcement capabilities and nuclear deterrence indispensable to that effort.
The question surrounding wartime operational control, known as OPCON, reaches beyond the nationality of the general commanding allied forces. Seoul must determine how to exercise greater authority while preserving the military integration and political commitment on which the alliance’s deterrence rests.
“Greater Korean autonomy and a stronger alliance are not contradictions,” Patrick Cronin, chair of Asia-Pacific security at the Hudson Institute, told AJP. “South Korea can assume greater responsibility for its own defense while remaining firmly anchored in the ROK–U.S. alliance.”
“Indeed, a more capable South Korea should strengthen the alliance, provided greater Korean responsibility is matched by interoperability, credible deterrence, and genuine joint decision-making,” he said.
That places a demanding test on the transition: greater authority must be accompanied by the capacity to exercise it.
“OPCON is a means, not an end,” Cronin said. “Its measure should be stronger deterrence, not adherence to a political timetable.”
The allies formally agree that the transfer should depend on military readiness and the security environment. How close they are to satisfying those conditions remains a matter of debate.
Rep. Jin Seong-joon, chair of the National Assembly’s National Defense Committee, said Seoul was not seeking to assume wartime command before meeting the agreed requirements.
“The military authorities of South Korea and the United States have continuously assessed the extent to which those conditions have been met, and we are now in the final stage of that assessment,” Jin told AJP.
“I believe the conditions have been substantially met,” he said. “What remains now is a political decision on when the transfer should take place. I do not think there is a major difference between South Korea and the United States over the timing.”
Gen. Xavier Brunson, commander of U.S. Forces Korea, told U.S. lawmakers in April that the allies had developed a roadmap aimed at meeting the conditions by the first quarter of 2029.
Those include South Korea’s ability to lead combined forces, its strike and air-defense capabilities, and a regional security environment conducive to the handover.
Bruce Klingner, a senior fellow at the Maureen and Mike Mansfield Foundation and a former chief of the CIA’s Korea Branch, described South Korea’s military as highly capable, with substantial investment in weapons and training. But he warned that critical gaps remain.
“While substantial progress has been made, significant deficiencies remain in the country’s Command, Control, Communications, Computers, Intelligence, Surveillance, and Reconnaissance (C4ISR), its ability to conduct joint and combined operations, and to push tasking to U.S. or multinational forces,” Klingner told AJP.
These are capabilities that allow a commander to assemble a reliable picture of the battlefield, coordinate different services and direct allied forces under combat conditions.
Their readiness bears directly on the pace at which Seoul can assume greater command responsibility.
The disagreement also reflects competing views of what OPCON represents.
Yoo Seong-min, a former chair of the National Assembly’s National Defense Committee, rejects the suggestion that the existing command arrangement compromises South Korea’s independence.
“Self-reliant defense refers to our own defense capabilities,” Yoo told AJP.
“The fact that we make use of the combined capabilities of the South Korea-U.S. alliance and do not take back OPCON does not mean that we are not a sovereign and independent country.”
For Yoo, the alliance adds to the military strength Seoul can bring to its defense.
“I believe our defense capability is maximized when we strengthen our own capabilities while also utilizing the alliance’s combined defense capabilities,” he said.
His central concern is the nuclear imbalance with Pyongyang.
“The essence of the security crisis is North Korea’s nuclear weapons,” Yoo said. “It is ridiculous for a country without even a small nuclear weapon to talk about self-reliant defense simply because it has a sizable defense budget.”
Edward Howell, a lecturer in international relations at the University of Oxford, warned that Pyongyang would seek to exploit any impression that the transition reflected weakening ties between Seoul and Washington.
“We must remember that North Korea has not ruled out forcible annexation of South Korea, not least using nuclear weapons offensively, under times of war,” Howell told AJP.
“If OPCON transfer is to take place, it must not be rushed to serve domestic political aims,” he said. “South Korea must be ready for what is arguably its most perilous regional security environment in the postwar era.”
One risk is that the two allies could attach different meanings to the same transition. Seoul may see the handover as recognition of its growing capabilities and a more equal partnership. Washington could see an opportunity to reduce its obligations.
“I do worry that some in Washington might see OPCON transition as an excuse for the United States to do less on the Peninsula, which could create a rift in the alliance,” said Zack Cooper, a senior fellow at the American Enterprise Institute.
Cooper argued that greater South Korean capability should be accompanied by closer integration.
“It would be better for the alliance to be tight and both allies highly capable, but to avoid decoupling,” he said. “We have to recognize that both countries need each other to maintain regional stability.”
“South Korea needs the U.S. conventional and nuclear deterrent,” he added. “The United States needs to work closely with South Korea’s innovation ecosystem and utilize its unique geographic position.”
That mutual dependence gives both governments reasons to preserve the alliance, but does not resolve the question of timing.
“I am worried about the pacing of OPCON transition,” Cooper said. “I believe the goal should be to tie OPCON transition to specific measurable progress, rather than a set time.”
Lauren Richardson, a lecturer in international relations at the Australian National University, places greater emphasis on Seoul’s search for room to act amid uncertainty about its ally.
She described the transition as “a move by the South Korean government to establish greater autonomy within the context of ROK-US alliance — not as a move away from relying on the alliance as the bedrock of South Korea’s defense policy.”
Among the forces driving that effort, she said, is the “increasing unreliability of the US as an ally.”
The pursuit of autonomy, however, carries regional implications of its own. If the handover accompanies a significant expansion of South Korea’s conventional capabilities, Richardson said, neighboring countries are likely to see it as an acceleration of the regional arms race.
“Strengthening deterrence without strengthening risk reduction can be an unstable combination,” she said.
The diplomatic and institutional arrangements surrounding the transfer will therefore help determine whether it strengthens security.
Jonathan Corrado, director of policy at The Korea Society, said a smooth handover could deepen allied coordination. Conversely, retaining an American four-star general in command would offer little protection against a deterioration in the underlying relationship.
“Whether or not OPCON is transferred matters less than the robustness of alliance coordination, continued credible signaling, high level political commitment, and multidimensional collaboration across economics, culture, and throughout society,” Corrado said.
Nuclear deterrence adds another layer to that relationship, requiring Seoul to seek a greater voice in decisions involving capabilities it does not possess.
“Korea will continue to have more say in strategic decision-making through conventional-nuclear integration (CNI), the Nuclear Consultative Group, and over time, it is conceivable that the US and South Korea could adopt some form of NATO-style nuclear sharing,” Corrado told AJP.
For decades, the OPCON debate has drawn much of its political force from a straightforward question: when should South Korea assume wartime command of its own forces?
The strategic answer has become increasingly complicated. A nuclear-armed North Korea, deepening cooperation between Pyongyang and Moscow, a more assertive China and uncertainty over Washington’s priorities all bear on the conditions under which Seoul would exercise that authority.
A South Korean general commanding allied conventional forces would still rely on American intelligence networks, reinforcements and nuclear deterrence. An American general occupying the same position would still depend on Washington’s willingness to honor its commitments.
Klingner warned that even a perceived weakening of U.S. resolve could erode deterrence. Trump’s criticism of allies and emphasis on the cost of overseas deployments, he said, have already heightened South Korean concerns about American reliability.
Seoul’s challenge is to build the capacity to lead while securing confidence that Washington will remain committed to the common defense.
“Korea’s geography leaves little room for strategic solitude,” Cronin said. “Its security depends on maintaining a favorable regional balance of power, and partnership with a distant great power such as the United States helps sustain that balance without threatening South Korean sovereignty.”
Greater Korean responsibility in the next decade, he said, should mean “greater capability, not greater strategic distance from the United States.”
AJP Takeaways
- President Lee Jae Myung wants South Korea to regain wartime operational control before his term ends in 2030, but experts caution that the transfer should depend on measurable military readiness rather than a political timetable.
- South Korea has built formidable conventional capabilities, yet gaps remain in C4ISR and combined operations, while North Korea’s nuclear arsenal means Seoul will continue to rely heavily on U.S. intelligence, reinforcements and extended nuclear deterrence.
- Experts broadly argue that greater South Korean autonomy need not weaken the alliance — but OPCON transfer will strengthen deterrence only if it is paired with tighter coordination, credible U.S. commitment and deeper joint decision-making.
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