Rubuta ci gaba ga wannan sakin layi - A ranar 17 ga Maris, 1917, an tura dukkan rundunar sojan doki ta 3 zuwa Fort Sam Houston, Texas, kuma wata daya bayan haka, Amurka ta shiga Yaƙin Duniya na Farko a gefen Allies. Rundunar ta kasance ɗaya daga cikin rukunin farko da suka isa Faransa a watan Nuwamba na wannan shekarar, kuma nan da nan suka fara aikinsu; aiki na manyan wuraren ajiyar doki uku. An caje ƙungiyoyi uku tare da sayen dawakai, mules da fodder, kulawa, yanayin, da kuma horar da remounts kafin a bayar, da kuma rarraba da kuma bayar da remounts ga Amurka Expeditionary Force. The kawai 3rd sojan doki naúrar ganin mataki a yakin duniya na I ya K Sojan, ware daga 3rd rundujar soja masu dawaki, da Sojan yi aiki a I Corps a lokacin Aisne-Marne Offensive (18 Yuli <unk> 6 Agusta 1918), kuma a III Corps a kan Vesle Front
(7-17 Agusta), Oise-Aisne Offensive (18 ga Agusta zuwa 9 ga Satumba), da Meuse-Argonne Offensive (14 ga Satumba zuwa 11 ga Nuwamba).