Beginning of WWII

Germany invades Poland on September 1, 1939, initiating World War II in Europe. Canada declares war against Germany on September 10, 1939. During the Second World war, Canada's restrictive immigration policy remains in place. 

Black-and-white photograph of a large group of soldiers marching in unison on a boulevard.
German troops march through Warsaw after the invasion of Poland. September 1939. (United States Holocaust Memorial Museum, courtesy of National Archives and Records Administration, College Park)

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