 After Namibia's independence in 1990, the area previously known as Ovamboland was divided into the Ohangwena, Omusati, Oshana and Oshikoto Regions.The population, estimated at between 700,000 and 750,000, fluctuates remarkably.This is because of the indiscriminate border drawn up by the Portuguese and German Empires during colonial rule, which cut through the Oukwanyama tribal area, placing some in Angola and others in Namibia.