A declaration of war by Canada against Germany was made by order-in-council signed by George VI, King of Canada, on 10 September 1939, seven days after the United Kingdom and France had also entered a state of war with the Nazi regime. The royal proclamation of the Canadian declaration was published in the Canada Gazette.
Prime Minister William Lyon Mackenzie King at the German Chancellery in Berlin, 29 June 1937
Adolf Hitler at Prague Castle, 15 March 1939
King George VI (right) and his wife, Queen Elizabeth (centre), with Prime Minister Mackenzie King (left) in Banff, Alberta, 27 May 1939
The United Kingdom declared war on Germany on Sunday 3 September 1939, two days after Germany invaded Poland. France also declared war on Germany later the same day.
Poles marching in Warsaw, after Britain declared war on Germany, during invasion of Poland. Banner reads "Long Live England".