France, Nov. 24 -- Continuing his African tour, French President Emmanuel Macron is in Luanda to join nearly 80 EU and African leaders at a two-day summit that marks 25 years of EU-African Union relations, which are fraying.

The EU is the leading supplier of direct foreign investment to Africa and its leading trading partner.

Yet China, the US and Russia are gaining influence, as some African countries turn away from their former colonial rulers, notably France.

"Relations between Africa and Europe need to be revisited," Pascal Saint-Amans, a professor at the University of Lausanne in Switzerland who in Luanda, told RFI.

"Economic exchanges for a long time happened in a colonial relationship, but I believe that with the overall shift ...