On the flag between the two pannel, you can make out "Ils ne sont plus d" and the other flag "de l'armée d'italie" meaning they are not (anymore) from the army of italy.
Which is a valid sentence, albeit a strange one. Also, unless it's divided on the two halves (seems to be the case) of the flag it seems a bit long.
The symbol on the flag seems close to a demi-brigade flag regiment.
Neat little details.