Photos of Tirailleurs mostly.

Wikipedia:
Tirailleur literally means a shooting skirmisher in French from tir—shot. The term dates back to the Napoleonic period where it was used to designate light infantry trained to skirmish ahead of the main columns. Subsequently "tirailleurs" was used by the French Army as a designation for infantry recruited in the French colonial territories during the 19th and 20th centuries or for metropolitan units serving in a light infantry role.