An aide-de-camp's place is to carry orders, not to fight.

Now, sir, ride at once to the count.

I hear his battle is still going on.

Tell him that I have defeated and scattered the troops of the prince, and that as soon as I can gather my men I shall march to join him." Hector bowed, turned his horse and galloped off, while the general rode on, sending every officer he overtook in search of the cavalry with orders that they were to abandon the pursuit and return instantly.

That evening after they had entered Carignano he called de Lisle and Chavigny into his room.
"Gentlemen," he said, "you will have to choose whether you remain with me or join one of the cavalry regiments.