If I'm not wrong, the monarchy had been overthrown before Napoleon ever came to power, and when he returned from his exile on Elba, the armies Louis had sent to stop him from reaching Paris, insted joined him in the march, after he spoke to them.
Perhaps it's just a story, but it's one that captivates imagination nonetheless; Napoleon, standing amongst men, all getting ready to fight, and then he speaks, and the enemy relents, and joins him...