I agree with Dave that the second photo shows coffee figures, but I think rather that they were sold in packages of Mokarex coffee.
The figures in the first pic are St Cyr cadets, aren't they? Don't they still serve as an honor guard on state occasions? I may be wrong, I haven't really delved into French military history, except those parts that relate to general European or world history.
Don't know about the figures in the third picture, unfortunately. I agree with Dave on that point, too, that "Plastic Warrior" is a good resource for us to start.
I'll check my sources, too.
PS-I saw last night that Richard O'Brien has written an updated edition of "Collecting Toy Soldiers", apparently released this year.
Prost!
Brad