Kammala wannan jumla: A 1940, 1st Infantry Division ya canza zuwa tsarin "triangular" tare da ƙarin sojoji 14,000 da aka sanya wa ƙungiyoyi daban-daban. Rukunin sashin sun kasance hedkwatar, 16th Infantry Regiment, 18th Infantry Regiment da 26th Infantry Regiment, bataliya na 5th Field Artillery Regiment, 7th Field Artillery Regiment, 32nd Field Artillery Regiment da 33rd Field Artillery Regiment da kuma Sojojin Bincike na 1 tare da tallafi daga 1st Medical Battalion, 1st Quartermaster Company, 1st Signal Company da 1st Ordnance Company. A cikin
Yaƙin Sicily, rukunin ya haɗu da bindigogi da makamai kuma ya goyi bayan ƙungiyoyin yaƙi tare da bindigogi na rukunin da ƙungiyoyin tallafi na sabis na yaƙi. Daga baya an sanya kamfanonin tanki da na tanki kai tsaye ga rundunonin don kamfen a Faransa.