The RCASC, along with the rest of the army, underwent a rapid expansion as Canada mobilized for the Second World War. The RCASC provided support to Canadian soldiers wherever they went; training in Canada and Great Britain, the campaign in north-west Europe, and in the campaign in Italy. The RCASC moved supplies from the rear areas to the front-lines. They delivered all rations, ammunition, petroleum products, and all other essentials. They did so with a variety of vehicles ranging from 3- to 10-ton trucks, and 40-ton tank transporters.