According to the Armistice, the NNSC shall be composed of four senior officers, two of whom shall be appointed by neutral nations nominated by the United Nations Command (UNC) and two of whom shall be appointed by neutral nations nominated jointly by the Korean People's Army (KPA) and the Chinese People's Volunteers (CPV). The term "neutral nations" was defined as those nations whose combat forces did not participate in the hostilities in Korea. The United Nations Command chose Switzerland and Sweden, while the Korean People's Army and Chinese People's Volunteers chose Czechoslovakia and Poland.