Iraq, Egypt and Nigeria used to be British colonies, Venezuela a Spanish colony, Libya Italian, and... yet...

If I'm building a reactor that I expect to last 30-50 years, I want to make sure I've got fuel for it for that long. Or at least half that long.

Occasional "visits' by the French Foreign Legion keep Chad, Niger, etc. more French than most former colonies.

In addition, one can store a LOT of urabium in a small volume (and I suspect that France has several years worth stored) and France is reprocessing (successfully) limited amounts of spent fuel, another source of reactor fuel.

Alan