When France realized that they were toast, they signed a pact with the devil. General Petain became the new French leader and moved the "gvt" to Vichy (a nice place in France where you can enjoy water springs and warm water springs).
Vichy was a government of collaboration separating the French in two. The ones who thought it was a great way to save his bacon, and the ones who thought that Vichy's partisans were traitors.
In villages, collaborators were denonciating resistans or non-vichy supporters to the SS ... thus some genocides and others tortures and shooting range on blindfolded target dumies. Do not forget the SS favorite: The flame thrower that some of my familly members had the chance to experience.
Coming as a perk from Vichy were a free train ticket to go working for German farmers and factories, or being designated volonteer to go fight against the allies. The D520s with the nice camo with the nose/tail yellow/red is one of them.
Off course, when France was liberated, even several years later, you could witness some really weird accidents happening to the collaborators. I know in the 3000 saoul village of my grand father, things got crazy after years of hate neighbor to neighbor.