Today’s wartime Christmas cards come to you from the Dominion of Canada. When Canada entered the Great War in 1914 it did so automatically as part of the British Empire. When Britain declared war on Nazi Germany in 1939, Canada was able to come to a separate decision on whether to join the struggle. A week after the British declaration the Canadian Parliament voted to sign on.
The first two cards, both from early in the war, show that the Union flag was still the one to wave in a patriotic fashion rather than the Canadian Ensign.
In both Canada and the USA Christmas cards were used to raise money for the war effort. Here is a French Canadian version.
The captions read “Gifts that will hasten victory” and “A Guarantee of Peace and Liberty. We must all contribute, so that is why I am sending you these War Savings stamps with my best wishes for the New Year. It is the best investment we can make to ensure a lasting peace.”