Canada, therefore, played a key role in the Allied struggle for control of the North Atlantic, as German submarines worked furiously to cripple the convoys shipping crucial supplies to Europe.
Even though the war was happening across an entire ocean, Canada still provided an impact to the war effort by producing war material, and financially providing support to the soldiers fighting in the war. On the home front, industries produced massively to support the war effort. Canada became one of the leading auto manufacturers in the world. They also built all types of war materials, mostly military vehicles, of which Canada became the second largest producer during the Second World War. Approximately half of the British Army's requirements were supplied from Canadian Manufactures. The official history of Britain referred to these vehicles as Canada's most important contribution to allied victory. Furthermore, Canadian citizens were “Doing their bit” through financial support, production of goods, and training of Allied pilots to allow Allied forces to continue and eventually secure the victory. Canada supported the war time efforts in Europe by