Kammala jumla mai zuwa: An shirya hedkwatar brigade a ranar 19 ga Yuni 1909 a matsayin Kamfanin M na 1st Infantry, Colorado National Guard a Denver. An canja kamfanin zuwa na 2 na Infantry a ranar 19 ga Nuwamba, yana riƙe da wasikarsa, kuma a ranar 15 ga Agusta 1913 ya koma 1st Infantry a matsayin Kamfanin G. Lokacin da aka kira Garkuwan Kasa don
aiki a kan iyakar Mexico a 1916, an tattara kamfanin a cikin sabis na Tarayya a ranar 19 ga Yuni a matsayin Kamfanin B na 1st Colorado Infantry Battalion. Bayan shigar Amurka cikin Yaƙin Duniya na I, an tsara rukunin a cikin sabis na Tarayya a ranar 5 ga Agusta 1917 kuma a ranar 24 ga Satumba ya zama Kamfanin B na 157th Infantry Regiment, wani ɓangare na 40th Division. An aika da shi zuwa Faransa tare da rarrabuwa amma bai ga yakin ba a matsayin wani ɓangare, ana amfani dashi a matsayin ajiya don samar da maye gurbin. Kamfanin ya koma Amurka bayan karshen yakin kuma an cire shi a Fort D. A. Russell a ranar 29 ga Afrilu, 1919.