Mezue ahịrịokwu na-esonụ: A kpọkọtara nkewa ahụ dị ka nke 5th Infantry Division n'August 1914 ma ziga ya n'ebe ọdịda anyanwụ maka mkpọsa mmalite nke agha ahụ. N'afọ 1914, ọ lụrụ agha n'Agha Marne nakwa n'Ọsọ Oké Osimiri ahụ. Ọ malitere ịlụ agha n'ebe ndị dị n'akụkụ Osimiri Somme. Ọ lụrụ ọgụ na Agha Somme na Agha Verdun na 1916 na na
Agha nke Abụọ nke Aisne (nke a na-akpọkwa Agha nke Atọ nke Champagne) na 1917. N'etiti afọ 1917, e zigara ya n'Ebe Ọwụwa Anyanwụ iji zaghachi mwakpo ndị Russia nke Kerensky. N'ọnwa Ọktoba afọ 1917, e zigara ndị agha ahụ n'ọgbọ agha Ịtali, bụ ebe ha lụrụ ọgụ n'agha Caporetto. Ọ laghachiri na Western Front na Disemba 1917, ma nọrọ ebe ahụ ruo ọgwụgwụ nke agha ahụ, na-ekere òkè na mwakpo German nke oge opupu ihe ubi na mwakpo ndị Allied nke sochiri. Ruo mgbe e jiri ọbara gbuo ya n'agha nke 1918, ndị Allied intelligence weere nkewa ahụ dị ka nke mbụ.