LUANDA, Angola (AP) — Joe Biden on Tuesday was using the first visit to Angola by a U.S. president to promote Washington’s investments in the sub-Saharan African nation and see a slavery museum, where he’ll acknowledge the trafficking of humans that once linked the nations’ economies.

President Joe Biden makes history as the first US President to visit Angola, focusing on the Lobito Corridor Railway Redevelopment Project.

The $5 billion infrastructure project is aimed at securing critical minerals supply chains on the African continent