Most areas have a tropical grassland climate with an average annual temperature of 22℃; The south has a subtropical climate. Located in the southwest of Africa, the coastline is1650km long. Most of the country is a plateau above 1000 meters above sea level, with high terrain in the east and low terrain in the west, and the Atlantic coast is a plain area. During the Middle Ages, Angola belonged to Congo, Ndongo, Matamba and Ronda. The Portuguese colonial fleet first arrived in Angola in 1482, invaded the Kingdom of Ndongo in 1560, and established Luanda in 1576. At the Berlin Conference 1884- 1885, Angola was classified as a Portuguese colony. Portugal occupied all the territory of Angola. 195 1 year, Portugal changed Angola into an "overseas province" and sent a governor to rule. After the mid-1950s, the Angolan People's Liberation Movement (MPLA), the Angolan People's Liberation Front (NPFL) and the National Union for the Total Independence of Angola (UNITA) were established one after another. 1961February 4th, the People's Movement of Angola began its armed struggle. 1975 65438+ 10/0/5. The above three organizations and the Portuguese government reached the Arbour Agreement on Angola's independence. On June 65438+1October 3 1 day, three Angolan organizations and Portuguese authorities formed a transitional government. Soon, armed conflicts broke out between SPLM, ANLF and UNITA, and the transitional government disintegrated in August. On June 5438+0975,165438+1October 10, the Portuguese authorities announced that "power will be transferred to the Angolan people". On June165438+1October 1 1 day, the People's Movement of Angola announced the establishment of the People's Republic of Angola, with Agosti Newt Neto as President. 198365438+1October 12. Angola established diplomatic relations with China.