Part of it is probably the best disciplined and the most feared military organization in the world—the Foreign Legion.
Exactly, the only cambat capable fighting force they have in made up of people of other nations.
I am reminded of a famous quote on the subject...
A man who has nothing for which he is willing to fight; nothing he cares about more than his own personal safety; is a miserable creature who has no chance of being free, unless made and kept so by the exertions of better persons than himself."
John Stuart Mill, 1806-1873
Thats because it isn't composed of Frenchmen.