Hello Pascal,
As much as I love it here, your request sounds like something that BGG (BoardGameGeek) would handle better. And indeed, I think I’ve found what you are looking for. In the file subsection of the BGG page for A&A Europe 1940 is a French translation of the second edition rules. As I don’t speak French, I can’t confirm that the translation is accurate. Judging by the pictures, it looks mostly accurate (the translator took some liberties with the Major and minor Industrial Complexes, but that shouldn’t be too hard to figure out). I hope that helps anyways.
-Midnight_Reaper