As didactic way....for no Napoleonic initiated....
Many time we can see Infantry soldiers with the classic hat "bonnet à poil".....and we think "is a grenadier".....yes but no....
From left to rigth
- Imperial Guard Grenadier
- Imperial Guard foot Chasseur
- Ligth Infantry "Carabinier"
- Line Infantry Grenadier
Also....some Cavalry "elite" troops use this type of hat....and the Imperial Guard foot Artillery....Gendarmerie.....is a bit crazy, I know....