Who are the Afrikaners that Donald Trump claims need protection in South Africa and what is the historical context of land ownership in the country?

Afrikaners are descendants of mainly Dutch colonialists who introduced slavery to South Africa and formalized apartheid in 1948. Despite comprising only 7% of South Africa's population, they own most of the country's private land, a disparity created through eight decades of racist laws that banned non-whites from owning land in about 93% of the country until apartheid collapsed. Since 1994, South Africa's government has attempted to address this historic inequality through land redistribution programs, buying properties from willing sellers and compensating black owners whose farms were confiscated. Trump has accused the South African government of using racism and violence to steal land from white citizens.