Rubuta ci gaba ga wannan sakin layi - Rukunin Landwehr na 9 ya yi aiki a Yammacin Yamma, yana riƙe da wani yanki a cikin gandun daji na Argonne. Daga Satumba zuwa Nuwamba 1915, ya ga aikin a karo na biyu na Champagne
Ka yi haƙuri. Daga Yuli zuwa Satumba 1916, ya shiga cikin yakin Verdun. Ya kasance yana da hannu a cikin Yaƙin na biyu na Marne a watan Yuli 1918. A ƙarshen 1918, ya fuskanci Allied Meuse-Argonne Offensive. Allied intelligence rated division a matsayin na huɗu na hudu; an dauke shi da farko a matsayin wani bangare mai kula da bangare kuma ba wani tsari ba amma "a kan karewa ya nuna wasu damar yin yaki.