Faatumu le fuaiupu lenei: O le 121st Field Artillery Battalion, e pei ona faaigoaina ai i le aso 1 Fepuari, 1942, na iloga ai i latou lava i le Pacific Theatre of Operations. O ana faailoga taualoa o le: Aitape,
Biak, Leyte, Luzon ma New Guinea (faʻatasi ai ma Saidor Arrowhead). I le amataga o le 1943, na tuuina atu ai i le 121st Field Artillery Battalion le 75 mm howitzers nai lo le 155 mm howitzers o ana auupega masani e avea ma autau lagolago lautele o le Vaega o le au fana.