Ruling party lawmaker accuses USFK chief of violating S. Korea's territorial sovereignty

The dispute centers on where South Korea’s territory begins in the area around the Military Demarcation Line. Gen. Xavier Brunson said the Republic of Korea starts at the southern fence. South Korean lawmakers viewed that wording as more than a description of military control. They said it could deny South Korea’s constitutional territorial claim over the Korean Peninsula and adjacent islands.

Brunson spoke at a Washington policy forum. He said fences stand about 2 kilometers north and south of the MDL. The southern fence marks the DMZ’s southern boundary, while the MDL runs through the buffer zone’s middle. Rep. Kim Byung-joo said the Armistice gives the UNC administrative authority, not power to define sovereignty.

Kim demanded a withdrawal and apology. Rep. Jin Sung-joon also criticized Brunson, warning of serious misunderstanding. The dispute could prompt review of military arrangements, including plans for transferring wartime operational control.

The Military Demarcation Line, or MDL, is the central line separating the two Koreas under the armistice arrangement. The Demilitarized Zone, or DMZ, is the wider buffer zone surrounding that line. They are therefore not the same boundary. The MDL is a line; the DMZ is an area.

The article gives a clear physical example. Fences stand about 2 kilometers north and south of the MDL. The southern fence marks the DMZ’s southern boundary. The MDL runs through the middle of the zone, leaving the northern and southern fences outside the line itself. Taken together, the two sides span roughly 4 kilometers.

That distinction matters politically. Brunson referred to the southern fence when describing where the Republic of Korea starts. Kim argued that this confused a military boundary with South Korea’s territorial sovereignty. The disagreement arose because control and sovereignty are separate issues.

The US military presence involved is substantial. The article identifies US Forces Korea as a force of 28,500 personnel. Gen. Xavier Brunson commands USFK and the United Nations Command. The dispute concerns a narrow but highly sensitive zone on the Korean Peninsula, where military arrangements and territorial claims meet.

The MDL runs through the center of the DMZ. Fences stand about 2 kilometers north and south of that line. The southern fence marks the DMZ’s southern boundary. Using the distances stated in the article, the space between the two fences is roughly 4 kilometers, although the article emphasizes the separate distances rather than giving a total width.

The scale explains the controversy’s importance. A relatively narrow buffer zone carries major security and constitutional implications. Brunson described South Korea as beginning at one fence. Lawmakers argued that the military geography must not be treated as a legal definition of national territory.

The key distinction is between administering a military zone and owning or defining territory. Rep. Kim Byung-joo said the 1953 Armistice Agreement gives the United Nations Command authority over access to and administration of the DMZ. That authority supports practical management of the buffer zone and its security arrangements.

Kim said the agreement does not authorize the UNC to determine South Korea’s territorial sovereignty. His argument responds directly to Brunson’s statement that the Republic of Korea starts at the southern fence. In Kim’s view, the fence can mark a military boundary without becoming the legal edge of South Korean territory.

This distinction drives the lawmakers’ demands. Kim called Brunson’s remarks an infringement and sought a retraction and apology. Rep. Jin Sung-joon also demanded clarification. The disagreement may affect discussions about operational control and the planned future combined command, though the article does not describe a legal ruling.

Territorial boundaries help a government know where its constitutional authority applies. They also help military organizations identify who controls access, manages security, and makes operational decisions. If a senior commander’s wording suggests that South Korea begins only at the southern fence, lawmakers fear it could confuse the relationship between South Korean sovereignty and military administration of the DMZ.

The article provides a concrete mechanism for that concern. Kim said the Armistice gives the UNC access and administrative authority over the DMZ, but not power to define South Korean territory. Jin warned that Brunson’s remarks could create serious misunderstanding about the extent of sovereignty. Such misunderstanding could complicate coordination between the UNC, USFK, and South Korean forces.

The issue also touches future military arrangements. Jin called for considering South Korean operational control in peacetime and wartime. He also urged review of the future combined-command plan after wartime operational control transfers. The article does not report an immediate change.

These organizations overlap in personnel but have different roles. The United Nations Command has authority over access to and administration of the DMZ under the 1953 Armistice, according to Kim. US Forces Korea is the 28,500-strong American military presence in South Korea. Brunson commands both USFK and the UNC.

The South Korea-US Combined Forces Command is different. It is a binational war-fighting command involving South Korean and US forces. The article says the CFC exercises wartime operational control over designated forces on the Korean Peninsula. Kim previously served as its deputy commander, the highest-ranking post held by a South Korean officer there.

These roles matter because authority is not identical across the organizations. The UNC’s DMZ responsibilities do not automatically define South Korea’s territory. USFK is a national force presence, while the CFC is a combined command. The lawmakers’ comments connect these distinctions to future operational-control arrangements.

Territorial sovereignty means a state has the ultimate legal authority over its territory. It includes the power to define the territory, make laws there, and represent the country’s interests. In the article, South Korea’s Constitution defines its territory as the Korean Peninsula and its adjacent islands. That claim is separate from day-to-day military management.

The DMZ illustrates the distinction. Kim said the 1953 Armistice gives the UNC authority over access to and administration of the DMZ. That can allow another authority to manage entry and operations in a sensitive zone. Kim argued that such administrative power does not transfer South Korea’s sovereignty or give the UNC power to define the country’s territorial boundary.

The dispute arose because Brunson said South Korea starts at the southern fence. Kim viewed that statement as crossing from military administration into a claim about sovereignty. Jin also warned of serious misunderstanding. The article links the issue to future operational-control decisions.