Whakaotihia te rerenga e whai ake nei: I hoki mai te 1st Cavalry Regiment ki Philippines i te tau 1908 ka noho ki Fort Stotsenburg mo nga tau e rua. He nui ake te rangimarie o tenei whakatakotoranga i to ratou whakamutunga, a ka hoki mai te ope ki te kainga i te 12 o Hui-tanguru 1910. Ko nga A, B, D, me nga K Troops i tu ki te Presidio o San Francisco, a, i muri mai ka hono atu ki te toenga o to raatau rerenga i te Presidio o Monterey tae noa ki te 1 o Akuhata 1914. I te neke ki te tonga o California, ka noho te 1st Cavalry ki San Ysidro hei whakautu ki te tipu haere o te riri ki te tonga o te rohe i Mexico. I te 24 o Akuhata 1915, ka neke te reimana ki Calexico, California ki te whakakaha i te rohe me te tiaki i nga whakaekenga a te "bandito", a Pancho Villa. I noho tonu rātau ki te tiaki i te rohe i te wā i whakarewahia ai e Pershing te
Ko te 1st Cavalry kaore i uru ki te Pakanga Tuatahi o te Ao, engari i noho tonu ki te tiaki i te rohe tae noa ki te 19 o Hanuere 1923, i haere ai ratou ki Fort D. A. Russell, Texas. Koinei to raatau tuunga whakamutunga hei hoiho hoiho, ana i te huihuinga i te 14 o Tihema 1932, ka heke nga hoia ka haere ki te arotake, ka mihi ki a raatau hoiho i a raatau e wehe ana hei waahanga miihini. I neke ki Fort Knox, Kentucky, ko te 1st Cavalry Regiment te roopu miihini tuatahi i te ope taua o te United States, a, i whakauruhia ki te 13th Cavalry Regiment ki te hanga i te 7th Cavalry Brigade (Mecz). I te raumati o te tau 1939, i uru te 7th Cavalry Brigade (Mecz) ki nga Whakangungu Plattsburgh me te awhina ki te whakawhanake i nga tikanga tuatahi a te ope taua mo te pakanga miihini. I te raumati o te tau 1940, ko nga Louisiana Maneuvers i whakaponohia te ope taua mo te hiahia ki te hanga i tetahi ope patu patu me te 1st Armored Division i whakatuhia i te 15 o Hurae 1940. Ko te 1st Cavalry Regiment i whakaingoatia ano ko te 1st Armored Regiment i taua ra ano, ka tohaina ki te 1st Armored Brigade. Kāore i roa ka whakamātauria te kaha o Amerika i roto i te pakanga.