As a french I really don't understand why French government doesn't do massive long term investment in Africa other than simple explotation of natural ressources. As many study says Africa is the future Asia with >8% growth and huge amount of population [1]. Even if there is a eavy colonial past and really bad things as Rwanda we share a language and some values.

[1]: http://www.theatlantic.com/international/archive/2012/05/the...