 Nyora kupfuurira kweiyi ndima - Decouz akatungamira hurumende yake paHondo yePułtusk musi wa 26 Zvita 1806. 21st Line yakarwawo muhondo yeEylau musi wa 8 Kukadzi 1807. Akava Baron weHumambo musi wa 27 Mbudzi 1807. Muna 1809, chikwata chake chakarwa muhondo dzeEckmühl, Ratisbon uye Aspern-Essling. Munguva yemabasa akatungamira kuHondo yeWagram, Decouz akatungamira kubatwa kwechitsuwa muRwizi rweDanube umo varume vake vakabata maAustria mazana matanhatu, Colonel Saint-Julien uye zvidimbu zvakawanda zvepfuti. Izvi zvakamuita kuti akwidziridzwe kuva mukuru webrigade musi wa 12 Chikunguru 1809 uye muchinjikwa wemutungamiriri weLegion of Honor musi wa 21 Gunyana 1809. 