Seoul's North Korea Policy in Disarray Amid Cabinet Feud

South Korean President Lee Jae-myung is navigating a complex diplomatic landscape, balancing relations with China, Japan, and the United States to revive talks with North Korea. But his biggest challenge may be closer to home: a fractured administration where key officials openly disagree on the strategy for engaging Pyongyang.

These internal disputes cut to the core of Lee's North Korea policy. His Unification Minister, Foreign Minister, and National Security Advisor are at odds over fundamental questions, including Seoul’s vision for unification, the role of a joint working group with the U.S., and who controls access across the heavily fortified border with the North.

The "Two States" Debate: A Constitutional Crisis?

The first major fault line appeared after North Korea officially abandoned its goal of unification in January 2024 and, by October, adopted a "hostile two-state theory." This pivot created a political dilemma for Seoul: how to engage with a North Korea that sees itself as a separate nation when South Korea's constitution does not recognize it as such.

This question sparked a clash between Unification Minister Chung Dong-young and National Security Advisor Wi Sung-lac.

• Chung's View: He argued that the two Koreas are already separate states in practice. He believes Seoul's policy should focus on transforming this hostile two-state relationship into a peaceful one.

• Wi's View: He countered that the Koreas are not two states but two parts of a single nation in a "special relationship" that will last until unification is achieved.

Before President Lee can restart dialogue with Pyongyang, his government must define the political meaning of these talks. Are they steps toward unification, as mandated by the constitution, or simply diplomatic exchanges between sovereign states? Without a clear answer, any engagement could face legal and constitutional challenges.

Turf Wars Over U.S. Coordination

Another point of contention is the South Korea-U.S. working group, a body designed to coordinate policy on North Korea. Established in 2018 under President Moon Jae-in, the group was often criticized for giving Washington a de facto veto over Seoul's inter-Korean initiatives. It was dissolved in 2021 but reinstated in December as Lee began outlining his own engagement strategy.

The revival of the group immediately exposed ministerial divisions. Chung's Unification Ministry announced it would not participate, even as Cho Hyun's Foreign Ministry pressed forward. Chung has insisted that his ministry retains the primary role in crafting North Korea policy and consulting with the U.S., a position that puts him in direct conflict with the Foreign Ministry and the working group's mandate.

The DMZ Standoff: Who Controls the Border?

The authority of the United Nations Command (UNC) to administer the Demilitarized Zone (DMZ) has also become a battleground. Unification Minister Chung supports a bill from the ruling Democratic Party that would give the South Korean government the power to approve civilian access to the DMZ for peaceful projects without UNC authorization.

Chung's move is aimed at preventing a repeat of past events under President Moon, when the UNC blocked plans to connect inter-Korean railways and roads by denying passage across the military demarcation line.

However, the UNC maintains that the 1953 Armistice Agreement grants it sole authority over the DMZ. This stance is supported by South Korea's own defense and foreign ministries, creating an awkward situation where part of Lee's government is siding with an external body against another ministry's initiative. This infighting risks damaging the cohesion of the South Korea-U.S. alliance, as the United States leads the UNC and opposes any measures that could reduce military readiness.

Lee's Balancing Act: Managing Dissent and the Alliance

President Lee has taken steps to prevent these policy disputes from crippling his vision for North Korea and undermining the alliance with Washington. He established a vice-ministerial channel between the unification and foreign ministries to improve policy cohesion. The Unification Ministry later affirmed that while methods might differ, both ministries are unified in their goal of resuming dialogue with Pyongyang and will consult with the U.S.

Externally, Lee has worked to bring Washington into his vision. He has praised U.S. President Donald Trump's role as a "peacemaker" and his relationship with North Korean leader Kim Jong Un. While advocating for scaling down joint military exercises to encourage Pyongyang, Lee has also reinforced the alliance by:

• Investing $150 billion in shipbuilding cooperation to help revive U.S. naval capacity, which is vastly outmatched by China's.

• Pledging to purchase $25 billion in U.S. military equipment by 2030.

• Committing $33 billion to support U.S. Forces Korea (USFK).

Why Internal Division Remains the Biggest Threat

Despite Lee's mediation efforts, the internal feuds persist. Chung and Wi recently clashed openly over resuming talks after Pyongyang condemned alleged South Korean drone incursions. Wi has also publicly opposed the idea of scaling back joint military drills as a bargaining chip.

To succeed, President Lee must clarify his chain of command and define each ministry's responsibilities. Pyongyang is unlikely to trust any offer from Seoul if it can be challenged or vetoed by another ministry.

Other powerful actors also complicate the situation. The UNC can still block cross-border projects, while the South Korea-U.S. working group could prioritize denuclearization over Lee's preference for peace talks. Furthermore, Washington's push for an expanded regional role for USFK could conflict with Lee's strategy to win support from China and Russia for his inter-Korean initiatives.

Ultimately, a simple agreement on the goal of dialogue is not enough. Lee's administration needs a unified consensus on both the objectives and the methods of its North Korea policy. While his "pragmatic diplomacy" has managed external pressures so far, calming the turbulence within his own government remains his most critical task.