For the first time since it won independence from Britain in 1966, Botswana faces a genuine electoral contest on Wednesday, as a feud between its current and a former president throws one of Africa’s most stable nations into uncertainty.

The Botswana Democratic Party, in power since independence day, faces an unusually tough parliamentary vote, after the country’s former president and political heavyweight Ian Khama fell out bitterly with his hand-picked successor, President Mokgweetsi Masisi, earlier this year.

There is no clear winner in sight and little to distinguish the contestants on policy. But whichever party wins will inherit the unenviable task of tackling high unemployment, inequality and over-reliance on dwindling diamonds, which turned Botswana into one of Africa’s wealthiest nations but cannot lift living standards forever.

Khama, the son of founding president Seretse Khama, has thrown his weight behind an opposition coalition led by human rights lawyer Duma Boko. The outcome of Wednesday’s vote will also determine who becomes president.

“We are putting an end to this misrule by the BDP. We want our people to be more empowered and to enjoy more of this country’s economic opportunities,” Boko told a news conference on Thursday, promising to create 100,000 jobs, raise the minimum wage and grow the economy by more than 6 percent a year.

Since freeing itself of its former colonizer, Botswana has bucked the trend on a continent often beset by post-independence civil conflict, autocratic leadership, and the squandering of natural resources by elites.

It has enjoyed peaceful, regular elections, and its vast diamond wealth, instead of fuelling war and rampant state theft, has been judiciously spent on free education and health.

The result: after decades of growth averaging 8 percent a year, per capital Gross Domestic Product is more than $8,000 — eight times that of Zimbabwe, five times Zambia, and about two thirds more than Namibia, its neighbors.

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