N. Korea's border reinforcement move not violation of armistice: ex-UNC official
The Demilitarized Zone (DMZ) is seen from the border area in Paju, Gyeonggi Province, May 8. Yonhap
A former United Nations Command (UNC) official has said North Korea's intensified border fencing is not a violation of the Armistice Agreement that halted the 1950-53 Korean War, assessing it as "construction and maintenance activities."
Michael MacArthur Bosack, the former deputy secretary of the UNC Military Armistice Commission, wrote the message on his social media, as North Korean troops have been building the fences very close to the Military Demarcation Line (MDL) separating the two Koreas.
"In my time at UNCMAC, I saw no evidence of the KPA boundary hardening activities being hostile in nature," Bosack wrote on X on Monday, using the acronym of the Korean People's Army, the North's military.
North Korea reportedly installed barbed wire fences just 80-90 meters from the inter-Korean border, clearing land to plant mines as close as 5-10 meters to the MDL, according to local media reports.
On whether Pyongyang's move constitutes a violation of the armistice, Bosack claimed the activities are "construction and maintenance" work, noting that the South Korean army also does the same thing on the south side, such as planting mines and building fences.
He said North Korea's ongoing border-hardening campaign creates "political friction at the top" while supporting practical stability on the ground, adding it reduces the risk of unauthorized crossings in the long run.
The South Korean military on Monday denounced North Korea's border reinforcement efforts as a "clear violation" of the Armistice Agreement, as the DMZ sits as a buffer zone extending 2 kilometers on either side of the MDL to restrict troops and heavy weapons.
But the UNC, which administers and enforces the Armistice Agreement, struck a cautious note, stating that those border measures "do not automatically constitute" violations of the agreement.
Bosack served as the deputy director of the UNC Military Armistice Commission from August 2019 to November 2025 and currently works at a private think tank.