On 4 August 1813 Decouz received promotion to general of division. In the Battle of Dresden on 26–27 August, Decouz led the 3rd Division of the Young Guard. Joseph Boyer de Rébeval's 1st Brigade included the 4th, 5th and 8th Voltigeur Regiments and Jean-Jacques Germain Pelet-Clozeau's 2nd Brigade was made up of the 9th and 10th Voltigeur Regiments. Each regiment consisted of two battalions. At 5:30 pm on the first day, Napoleon sent in the Young Guard divisions and they retook all the ground captured by the Allied attacks. During the night, Napoleon shifted the Young Guard from the center to the left flank where they pushed back the Allied right wing on the second day.