UNC spokesman Colonel Chad Carroll declined to confirm if the command would also withdraw any weapons from the JSA, but said American forces would provide support for the demining operation.
As denuclearisation talks between the U.S. and North Korea continue to stall, Pyongyang has warned Washington that it can not use a declaration to end the Korean War as a bargaining chip. Troops remaining in the area are to be unarmed. In 2019, the troops are to search for the remains of hundreds of soldiers who died in the Korean War.
The JSA is the only area along the 155-mile long demilitarized zone, or DMZ, where troops from both countries are face to face. North Korea, for its part, is considered to have put about 800,000 to 1 million mines on its side.
Experts believe that there are more than 1 million land mines along the border - and civilians and soldiers alike have been killed or injured by them. A 2015 DMZ mine explosion blamed on North Korea that maimed two South Korean soldiers pushed the rivals to the brink of an armed conflict.
But critics of his engagement policy have lambasted his recent inter-Korean military deals, saying a mutual reduction of conventional military strength would eventually weaken South Korea's war readiness because the North's nuclear program largely remains intact.
They also reportedly dismantled propaganda, loudspeakers and some guard posts along the militarized border.
There was no immediate confirmation from North Korea that its troops had begun the process.
Pep Guardiola hails 'important' Leroy Sane but reiterates bench threat
City were not expecting him to be available until late November, but his return could well come before this month's worldwide break.
KCNA said that Pyongyang was willing to take "such. steps as eternal dismantlement" of its nuclear complex "if the USA takes a corresponding measure" but again did not elaborate. Past rapprochement efforts were often stalled after an worldwide standoff over the North's nuclear ambitions intensified.
The summit was the third this year between the leaders, following a rapid thaw in relations.
"But, if the USA doesn't want the end of war, the DPRK will also not particularly hope for it", it added, using the acronym of North Korea's official name, the Democratic People's Republic of Korea.
The North entered talks with the United States and South Korea earlier this year, saying it's willing to negotiate away its advancing nuclear arsenal.
But it claimed the United States is "trying to subdue" it through sanctions - an unsubtle call for Washington to lift sanctions if it wants any progress in their stalled nuclear negotiations. The remains of a large number of Chinese and North Korean soldiers are also likely there.
Apparently reflecting the improving ties, North Korea sent Choe Ryong-hae, its de facto No. 2 official, to a reception hosted by the Chinese embassy in Pyongyang last week to mark China's founding anniversary.