Rubuta ci gaba don wannan sakin layi - A ranar 19 ga Nuwamba, 1915, Foulois ya jagoranci jirgin saman jirgin sama na 1st Aero Squadron na Curtiss JN3s shida daga Post Field, Fort Sill, Oklahoma, zuwa Fort Sam Houston, San Antonio, Texas, wanda aka yi niyya a matsayin shafin farko na dindindin na Sashen Jirgin Sama, Cibiyar Jirgin Sama ta San Antonio. A shekara ta 1916, Pancho Villa ya tsallaka zuwa New Mexico kuma ya kashe Amurkawa 17. A sakamakon haka, Brig. Janar John J. Pershing an umurce shi da ya bi Villa zuwa Mexico
, kuma an umurci Foulois da ya dauki jiragen sama guda takwas don samar da bincike da sadarwa. A ranar 15 ga Maris, 1916, Foulois da 1st Aero Squadron sun isa Columbus, New Mexico don aiki. A ranar 16 ga Maris, Foulois ya tashi a matsayin mai kallo tare da Dodd a farkon jirgin leken asiri na Amurka a kan ƙasashen waje (yana wucewa Mexico don neman Villa). A cikin makonni takwas, shida daga cikin jirgin sama sun lalace kamar yadda jirgin sama ba zai iya yin gwagwarmaya da babban tsawo ba, mummunan yanayi da bushewar yanayi.