Kammala wannan jumlar: A lokacin da Yaƙin Duniya na Farko ya ɓarke Estienne ya zama kwamandan rundunar bindiga ta 22 da ke aiki tare da rukunin Philippe Pétain. A cikin
Ya yi mamakin abokan hamayyarsa na Jamusawa ta hanyar daidaiton harbin bindigarsa, wanda aka tsara shi sosai saboda haɗin kai da jirgin sama. Amma ƙwarewar Estienne ba za ta iya ceton sojojin Faransa daga hallakawa ta hanyar bindiga ba. Don kare sojoji a cikin yakin basasa, ya yi tunanin garkuwar sojoji masu motsi don taimaka musu.