Perhaps this will help you:

'There's a man for you! He is forced to flee from an army that he dares not fight, but he puts eighty leagues of devastation between himself and his pursuers. He slows down the march of the pursuing army, he weakens it by all kinds of privation-he knows how to ruin it without fighting it. In all of Europe, only Wellington and I are capable of carrying out such measures. But there is a difference between him and myself: I France...I would be criticized, whereas England will praise him.'-the quotation being from Mes Souvenirs sur Napoleon by Jean Antoine Chaptal.