Sejong Ministry Relocation Plan Raises Crisis Coordination Concerns

A government proposal to move South Korea’s defense and foreign affairs ministries from Seoul to Sejong is drawing scrutiny over its potential effects on wartime coordination, diplomatic access and the cost of replicating secure facilities.

The broader plan calls for 44 central government agencies that remain in the greater Seoul area to relocate in stages by 2031. The inclusion of the Defense Ministry has become a central point of debate because the Joint Chiefs of Staff, which directs military operations, is not included in the proposed move.

Security specialists and opposition lawmakers say separating the Defense Ministry from the presidential office, military leadership and major command facilities around the capital could complicate coordination during a crisis. The presidential National Security Council’s crisis management center is at Cheong Wa Dae in Seoul, while key military facilities are also concentrated in or near the capital region. Sejong is about 120 kilometers from Cheong Wa Dae in a straight line.

Questions have also emerged over whether Sejong would need a new protected command center. No dedicated wartime bunker there has been publicly identified, and the government has not disclosed detailed plans for such a facility. Critics say building a highly secure site with protected communications could carry substantial costs, while leaving existing facilities in place could require senior officials to travel long distances during an emergency.

Defense officials have pushed back against claims that relocation would automatically create a command vacuum. They argue that senior civilian and military leaders do not always need to be in the same physical location and that major command centers are linked by secure communications and video systems. One official also noted that concentrating leaders in a single site can create risks of its own.

The proposal remains at an early stage. Current law exempts the defense, foreign affairs and unification ministries from relocation to Sejong, so legislative changes would be required before the plan could proceed. Officials said the final structure and implementation details cannot yet be predicted.

The Foreign Ministry faces a different practical challenge. Seoul remains home to 118 embassies and is the center of the country’s diplomatic, business and consular activity. Airports used by visiting foreign leaders, major hotels and most official diplomatic events are also concentrated in the capital area. The ministry said it is communicating with relevant agencies and exchanging views on the proposal.

The effort is part of a decades-old drive to decentralize government functions. Sejong began receiving ministries in 2012, and a second presidential office there is scheduled for completion in 2029. Under the latest proposal, the remaining agencies would move in phases through 2031, but the political, legal and security debate is likely to shape which institutions ultimately relocate.