Biden is using his third and final day in Angola to showcase the Lobito Corridor railway, where the US and key allies are investing heavily to refurbish 800 miles of train lines in Zambia, Congo, and Angola.

President Joe Biden said "there's nothing beyond our capacity if we work together" while addressing a gathering outside the National Museum of Slavery in Luanda, Angola, on Tuesday.

The president will also announce initiatives related to global health and security cooperation, among other things, a senior administration official said.