Other uplanders in the north migrated from southern China between the 1300s and 1800s. Since the partition of Vietnam, the population of the Central Highlands was almost exclusively Degar (including over 40 tribal groups); however, the South Vietnamese government at the time enacted a program of resettling Kinh in indigenous areas. The Hoa (ethnic Chinese) and Khmer Krom people are mainly lowlanders. Throughout Vietnam's history, many Chinese people, largely from South China, migrated to the country as administrators, merchants and even refugees. Since the reunification in 1976, an increase of communist policies nationwide resulted in the nationalisation and confiscation of property especially from the Hoa in the south and the wealthy in cities. This led many of them to leave Vietnam. Furthermore, with the deterioration of Sino-Vietnamese relations after the border invasion by Chinese government in 1979 many Vietnamese were wary of Chinese government's intentions. This indirectly caused more Hoa people in the north to leave the country.