Mezue ahịrịokwu na-esonụ: Mgbe Agha Ụwa nke Mbụ tiwapụrụ n'August 1914, Brauchitsch eruwo ọkwa onyeisi ndị agha. A họpụtara ya ịbụ onye isi ndị agha nke ndị agha nke XVI, nke dị nso na Metz. N'oge Agha Iwa Mbụ, o jere ozi na Ngalaba 34th Infantry na ndị nche Reserve Corps. N'agbata afọ 1914 na afọ 1916, o so lụọ Agha Verdun na Agha Argonne Forest. N'ime afọ abụọ fọdụrụ nke esemokwu ahụ, Brauchitsch sonyere na Agha nke Atọ nke Aisne, mwakpo Aisne-Marne,
Agha nke Abụọ nke Aisne, Agha nke Armentières, na Agha nke Flanders. Enyere Brauchitsch okpu agha Iron Cross 1st Class na House Order nke Hohenzollern, ma mechie agha ahụ na ọkwa nke onye isi.