Napoléon did well....


....while he was close to France (and cheese was readily available).



But the Imperial Army suffered in Russia (as Alexander I
knew they would).
The 7th Polish Lancers and the Chasseurs-a-Cheval as Napoléon's escort (cheeseless).
Le Pas de Fromage
Which just goes to prove that Frenchmen lose wars when
they are deprived of cheese.
A lesson....