Notes on Canada's Involvement in WWII

Mackenzie King served as Prime Minister of Canada from 1935 to 1948.
His government adopted an isolationist stance, focusing on internal matters rather than international conflicts.

The League of Nations faced its first major challenge when Mussolini of Italy announced his intention to invade Ethiopia to expand the Italian Empire.
Initially, Ethiopia was a wealthy kingdom but had suffered due to drought and other challenges.
Historical Background: In the late 1800s, Ethiopia had defeated Italy in battle, which fueled Mussolini's desire for revenge.
The League of Nations attempted to impose sanctions on Italy, particularly targeting oil exports based on a proposal from Canadian representative Walter Riddell.
Mackenzie King undermined this proposal by dismissing Riddell’s suggestions, which led to the failure of the sanctions and allowed Italy to invade Ethiopia.
Result: The invasion was brutal; thousands died, and Mussolini later claimed that had the oil sanctions been enacted, the invasion would have failed.

In 1936, Spain entered a civil war with Francisco Franco leading Fascist forces against nationalist opposition.
Approximately 1,500 Canadians participated as anti-fascist fighters, known as the Mackenzie Papineau Battalion, without government recognition or support.
The Canadian government refused to arm or officially support these fighters, leading to many returning to Canada and facing imprisonment due to their communist ties, despite their service.

Canada declared war on September 10, 1939.
Sidney Howe served as Minister of Munitions and played a significant role in Canada's military organization during the war.
Howe implemented wartime prices and trade regulations to control the economy and ensure fair pricing.
Canada's wartime efforts resulted in financial support to Britain, providing a billion dollar handout without expecting repayment.

The Battle of the Atlantic was the longest continuous military campaign of WWII, lasting from 1939 until the war's end.
U-boats operated in wolf packs, targeting Allied shipping, leading to significant losses (e.g., 450,000 tons of shipping sunk in January 1941).
Up until mid-1942, only seven U-boats were sunk for the loss of 400 Allied ships, showing the dire challenges faced.
The initial formation of merchant ships still involved using a convoy system like that of WWI but faced new technology from German U-boats.

Canadian naval forces increased from 6 battleships in 1939 to 434 ships by the war's end.
The introduction of radar and sonar technologies enhanced the ability to detect U-boats.
During 1942, the threat of U-boats was real, with instances of attacks occurring close to Canadian waters, including the St. Lawrence River, leading to temporary closures for security.

The German U-boats later included snorkels for improving their operational capabilities, allowing submerged recharge of batteries.
This development highlighted the technological arms race during naval warfare, although it came too late to change the war's outcome in favor of the Germans.

The events of WWII show Canada's early struggles within the League of Nations, its military involvements prior to the official declaration of war, and its significant role in the naval campaigns of the Atlantic, reflecting broader themes of isolationism, conflict, and military organization.