 Nyorera kupfuurira kweiyi ndima - Akasimudzirwa ku Général de brigade musi wa 24 Zvita 1805, Carrière akaitwa wekutanga aide-de-camp kuna Marshal Murat, uye akapihwa basa rekutora Wesel musi wa 9 Kurume 1806. Akashanda muPrussia nePoland muna 18067, achirwa paJenamusi wa14 October 1806. Musi wa16 Gumiguru, akatora hutungamiriri hwechinguva chebhurugwa rehondo yechiedza panzvimbo yaGeneral Milhaud, achishanda kuPrenzlau musi wa28 Gumiguru asati adzokera kubasa rake pachigaro chaMurat. Akarwa paEylau, uye pamberi peDanzig musi wa14 Chivabvu 1807, kwaakatungamira vatasvi vemabhiza veI Corps panzvimbo yaGeneral La Houssaye. Akarayirwa kumisa simba revarume 10 000 vaifamba vachibva kuPillau, akarwisa ndokuparadza uyu mutumbi, achitora zvombo zvavo zvehondo nenhamba huru yevasungwa. Pazuva rimwe chetero akaitwa Mutungamiriri we Légion dHonneur uye Knight weOrder yeIron Crown. Akatungamirira I Corps reserve cavalry paFriedland uye akabatsira mukubudirira kwezuva racho. 