The French army are already preparing for that eventuality
and have redesigned the French flag accordingly; it's now a white cross on a white background.
( Flapjack I spay a little mare for you, Thu 7 Jul 2005, 10:02, archived)

:)
I have visions of their uniforms just being made from lots of white detachable panels.
( Fenris temporary Lazarus, Thu 7 Jul 2005, 10:04, archived)