Rubuta ci gaba ga wannan sakin layi - A ranar 1 ga Janairu, 1918, an sanya shi a matsayin kwamandan rundunar ta 5 a Faransa kuma a watan Mayu ya tura rundunarsa zuwa aiki a Belleau Wood
inda aka dakatar da babban yunƙurin Jamus. A watan Yuli, umurnin Neville ya fadada don hada da Brigade na 4 na Marine, wanda ya jagoranci a lokacin kwanakin da suka rage na yaki da kuma lokacin da yake aiki a Jamus. An daukaka shi zuwa brigadier janar a shekarar 1919.