Kammala jumla mai zuwa: An daukaka shi zuwa babban mukamin soja na Janar na Division a cikin 1803, Nansouty an kira shi zuwa umurnin 1st Heavy Cavalry Division a cikin Sarkin sarakuna Napoleon I wanda aka kirkiro Grande Armée. Da yake jagorantar wannan rukunin daga 1804 zuwa 1809, Nansouty ya kasance a wasu daga cikin manyan fadace-fadace na Uku,
Hadin gwiwar na huɗu da na biyar, suna jagorantar ayyukan sojan doki a yaƙe-yaƙe na Austerlitz, Friedland, Eckmühl, Aspern-Essling da Wagram. A cikin 1812, yayin yakin Rasha, Nansouty ya umurci rundunar sojan doki na I, wanda ya jagoranci tare da bambanci a irin wannan yaƙe-yaƙe kamar Ostrovno da Borodino, inda ya sami mummunan rauni a gwiwa. A shekara mai zuwa, ya umurci sojojin dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun dakarun. A cikin 1814 ya jagoranci mutanensa a cikin alkawura da yawa, gami da La Rothière, Montmirail, Vauchamps da Craonne har sai da rauni ya hana shi aiki a wannan shekarar.