The long-promised trip to the continent will see Biden tout American investment in Angola and visit a slavery museum.

Joe Biden is using the first visit to Angola by a U.S. president to promote Washington’s investments in the sub-Sahara African nation and to see a slavery museum where he’ll acknowledge the trafficking of human beings that once linked the nations’ economies.

President Joe Biden departed the United States for Angola on Sunday night, making good on his promise to visit the African continent before his term ends in January.