Reminds me of Skinners tribes from Drake & Stirling series “General”

Barbarian nomads employed by the Civil Government as mercenaries. Notorious anarchists, with a reputation for marksmanship, dog riding, and atrocities. The Skinners speak a mangled mixture of English and French, “Paytoiz”. They are reminiscent of the Huns. There are many references to the Skinners coming from French Canada, particularly Quebec. One of the groups is the “Trois Rivière” tribe. There are also examples of French Canadian names. This also explains the mixture of French and English.

They also had middle finger on their flag