States and that of South Korea. From 1978, UNC maintained its primary functions of maintaining and enforcing the Korean Armistice Agreement, facilitating diplomacy that could support a lasting peace on the Peninsula, and providing a command that could facilitate multinational contributions should the armistice fail. UNC decreased in size, and over time, many of the billets assigned to UNC became multi-hatted with U.S. Forces Korea and Combined Forces Command. The 1990s again saw notable change in UNC. In October 1991, UNC transferred responsibility of all DMZ sectors except for the Joint Security Area to the ROK military. In 1992, UNC appointed a South Korean General officer to serve as the Senior Member to the Military Armistice Commission. This led to the Korean People's Army and Chinese People's Volunteers boycotting MAC meetings. The collapse of the Soviet Union also led North Korea to question the alignment of their choices for the Neutral Nations Supervisory Commission. They no longer recognized Czech or Slovak representatives of Czechoslovakia when the nation split into the Czech Republic and Slovakia. In 1994, North Korea expelled the Polish delegation and also dismissed the Chinese People's Volunteers from the Panmunjom mission. Owing in part being protest over China's warming ties with South Korea. Since 1998, UNC has seen a gradual increase of permanent international staff within the command. In between 1998 and 2003, several of the original contributors to the Korean War began deploying personnel to Korea to support UNC's armistice maintenance functions. This internationalization has continued over the next decades. In May 2018, Canadian Lt. General Wayne Eyre became the first non-American to serve as deputy commander of the UNC. Succeeding him was Australian Vice Admiral Stuart Mayer, and the Lieutenant General Andrew Harrison of the British Army, continuing the trend of non-American leadership in UNC. UNC–Rear United Nations Command–Rear is located at Yokota Air Base, Japan and is commanded by a Royal Australian Air Force group captain with a deputy commander from the Canadian Forces. Its task is to maintain the SOFA that permits the UNC to retain a logistics rear and staging link on Japanese soil. Future of the Joint Security Area To further the September 2018 inter-Korean Comprehensive Military Agreement, UN Command, Republic of Korea Armed Forces, and North Korean People's Army officials met in a series of negotiations to deliberate the demilitarization of the Joint Security Area. The first two meetings in October