Tuhia he haere tonu mo tenei whitianga - I te wa o te whakawhānui o te ope taua o te United States hei whakarite mo te Pakanga Tuarua o te Ao, i whakahoutia te waahanga i te 30 o Tihema 1940 hei Battery A, 25th Field Artillery Battalion. I te 19 o Tihema 1942 i whakahoutia ano te waahanga hei Battery A, 604th Field Artillery Battalion ka tukuna ki Camp Carson, Colorado hei waahanga o te 10th Infantry Division (Mountain) i hangaia hou. Hei waahanga o te 10th Mountain Division, i wehe atu te waahanga i te United States mo te Whare Taonga o Europi o nga Mahi, ka tae ki Itari i te Hanuere 1945. I te Pakanga Tuarua o te Ao, i whiwhi te roopu i nga panui mo nga mahi i te Raki Apennines, Po Valley, Rhineland
, Ardennes-Alsace, me te pokapū o Uropi. Whai muri i te mutunga o te Pakanga Tuarua o te Ao i Uropi me te Moana-nui-a-Kiwa, i whakaingoatia te Battery A, 604th Field Artillery Battalion hei Battery A, 25th Field Artillery Battalion, a, i muri tata mai ka whakakorehia.