Whakakī i te rerenga e whai ake nei: I te Whiringa-a-rangi 19, 1915, i arahina e Foulois te 1st Aero Squadron te rerenga whakawhiti-whenua o nga Curtiss JN3 e ono mai i Post Field, Fort Sill, Oklahoma, ki Fort Sam Houston, San Antonio, Texas, i hangaia hei waahi mo te turanga tuatahi o te Aviation Section, te San Antonio Air Center. I te tau 1916, ka whiti a Pancho Villa ki New Mexico, a ka patua e 17 nga Amerikana. Hei whakautu, i whakahaua a Brig. Gen. John J. Pershing ki
ka whai i a Villa ki Mexico, ā, i whakahaua a Foulois kia mau ki ngā rererangi e waru hei whakarato i te mātauranga me te whakawhitiwhiti kōrero. I te 15 o Poutu-te-rangi 1916, ka tae a Foulois me te 1st Aero Squadron ki Columbus, New Mexico mo te mahi. I te 16 o Poutu-te-rangi, i rere a Foulois hei kaitirotiro me Dodd i runga i te rerenga mataaratanga hoia a Amerika tuatahi i runga i te rohe ke (e rere ana i Mexico ki te rapu i a Villa). I roto i nga wiki e waru, e ono o nga rererangi i whakangaromia i te mea kaore i taea e te rererangi te aro ki te teitei teitei, te huarere kino me te hau maroke.