Outgoing U.S. President Joe Biden is making a historic visit to Angola, fulfilling a pledge to strengthen U.S. ties with sub-Saharan Africa as competition with China intensifies. Biden, the first U.S. president to visit Angola since its independence in 1975, will spend three days in Luanda, from Monday to Wednesday, discussing economic, political, and cultural partnerships. The visit honors a promise Biden made in 2022 to engage more closely with Africa. Originally scheduled for October,