Tulis kelanjutan kanggo paragraf iki - Ing taun 1940, Divisi Infantri kaping 1 diowahi dadi struktur "segitiga" kanthi tambahan udakara 14,000 prajurit sing ditugasake ing macem-macem unit. Unit divisi kasebut minangka markas, 16th Infantry Regiment, 18th Infantry Regiment lan 26th Infantry Regiment, batalyon saka 5th Field Artillery Regiment, 7th Field Artillery Regiment, 32nd Field Artillery Regiment lan 33rd Field Artillery Regiment lan 1st Reconnaissance Troop kanthi dhukungan saka 1st Medical Battalion, 1st Quartermaster Company, 1st Signal Company lan 1st Ordnance Company. Ing Perang Sisilia
, divisi campuran infantri lan baja lan uga ndhukung tim tempur karo artileri divisi lan unit dhukungan layanan tempur. Perusahaan tank lan tank destroyer mengko ditugasake langsung menyang resimen kanggo kampanye ing Prancis.