Ka kammala wannan magana: A shekara ta 1912, an kira rundunar don aiki a yakin Mexico. A cikin daren 5 ga Mayu zuwa 6 ga Mayu, 1916, ƙungiyar sojoji tara da ke gadin Glenn Springs, Texas sun kai hari daga ƙungiyar kusan 70 Villistas a cikin Glenn Springs, kuma an kashe wasu mutane uku, William Cohen, Stephen J. Coloe, da Lawrence K. Rogers, a ƙasar Amurka. Daga nan sai ƙungiyar ta shiga rundunar janar John J. Pershing a cikin
Fitowar Hukunci ta Mexico da Pancho Villa da sojojinsa a lokacin bazara na 1916, suna bin 'yan fashi a fadin filayen Mexico. Daga nan sai rundunar ta koma Texas, inda ta fara aikin yin sintiri a kan iyaka har zuwa 1918, lokacin da aka kira shi a cikin sabis a Turai. An sanya hannu kan yarjejeniyar Versailles kafin rundunar ta iya tsallake Atlantic kuma rundunar ta ci gaba da aikinta na iyakar iyaka.