Rubuta ci gaba don wannan sakin layi - Da farko an tsara shi Marquis na Laval, ya shiga cikin masu tsaron gida a ranar 1 ga Janairu 1741, yana aiki a yakin Flanders a 1742. A ranar 4 ga Afrilu 1743 ya sayi kwamiti don ya ba da umurni ga kamfanin doki a cikin regiment de Royal-Pologne. A ranar 27 ga Yuni 1743 ya yi yaƙi a Dettingen
kuma a ranar 22 ga watan Agusta na wannan shekarar an ba shi izinin zama colonel na rundunar sojan sama da aka sake masa suna bayan shi. A cikin 1744 ya kasance a lokacin da aka kama Wissembourg da Layin Loutre, a harin da aka kai a kan ramuka a Suffelsheim da kuma kewaye Fribourg. Ya shiga cikin kama Cronenbourg a watan Maris na 1745. Ya shiga sojojin Faransa a Flanders, yana shiga cikin rundunar