Africa is expected to see a massive population boom in the next several decades. At the same time, the United States, China and European nations are pulling back their presence there in terms of aid, trade and investment. In this episode, the Opinion columnist Lydia Polgreen speaks with the former Times correspondent and bureau chief Howard French about the challenges facing Africa, the risk for global powers if they disengage from the continent and one 20th-century African leader’s vision for Black self-reliance that feels especially relevant today.

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