The 69th Pennsylvania Infantry Companies I and K wore a uniform reminiscent of regiments of which army?
69th Pennsylvania Infantry:  This uniform consisted of a dark blue Zouave jacket with green trimming, green cuffs, and sixteen brass buttons down the front on both sides of the jacket, a sky blue Zouave vest, chasseur sky-blue trousers, and a dark blue kepi. Zouave: The Zouaves (] ) were a class of light infantry regiments of the French Army serving between 1830 and 1962 and linked to French North Africa, as well as some units of other countries modelled upon them.
French Army