Zaire Province a vassal state of the Kingdom of Portugal. In 1914, the Kongo monarchy was abolished after Portuguese suppression of several revolts. From 1885, Portuguese Angola included the district of Congo, which was split in 1919 into the districts of Cabinda and Zaire, respectively north and south of the Congo/Zaire River. During the 1961–1974 Angolan War of Independence, a large fraction of the Bakongo fled to the Republic of Zaire. Many of these refugees and their offspring returned after the Alvor Agreement recognised Angolan independence. Historical and cultural monuments include: M'Banza Congo (formerly São Salvador do Congo) is the provincial capital.
27th Group Army then participated in the battle of Huaihai where it confronted and destroyed the KMT Huang Bo Tao Army Group. In February 1949 the unit was redesignated and reorganized as the 27th Army. In 1949 the 27th Army was composed of the 79th, 80th and 81st Divisions. The unit took part in the assault on Shanghai. The 27th Corps was part of the first contingent of Chinese forces to be deployed to Korea in October 1950 to fight against United Nations forces. It consisted of the 79th, 80th, 81st and 94th Divisions, though the 94th Division was attached to the 27th