Canada's Role in World War Two — What to Know for the Test

# Canada's Role in World War Two — What to Know for the Test

World War Two was the largest mobilisation Canada has ever undertaken. Over 1.1 million Canadians served, transforming the country from a regional power into a major industrial and military nation. This guide covers the WWII facts the citizenship test expects you to know.

• Britain declared war: September 3, 1939
• Canada declared war: September 10, 1939 — one week later, after a Parliament vote

Unlike WWI, Canada declared war independently. The 1931 Statute of Westminster had given Canada full legislative independence, so Canadian foreign policy was now Canada's own. Prime Minister William Lyon Mackenzie King led Canada through the war.

• Population: about 11 million in 1939
• Over 1.1 million Canadians served in the Canadian Army, Royal Canadian Navy, Royal Canadian Air Force, and Merchant Marine
• About 45,000 died
• About 55,000 wounded

Hong Kong — December 1941

About 2,000 Canadian soldiers were sent to defend Hong Kong against a Japanese invasion. After 18 days of fighting, the colony fell on December 25, 1941. Of the Canadians sent, 290 were killed in action and 264 died as prisoners of war in Japanese camps.

Dieppe Raid — August 19, 1942

A disastrous raid on the German-held port of Dieppe in France. About 5,000 Canadians took part; over 900 were killed and roughly 1,900 taken prisoner. The raid taught hard lessons that informed D-Day planning two years later.

Italian Campaign — 1943–1945

Canadians fought in Sicily (July 1943), the Italian mainland, and the bloody battle for Ortona (December 1943) — sometimes called "Little Stalingrad" for its house-to-house combat. Canadians also fought in the Liri Valley and the Gothic Line.

D-Day — June 6, 1944

The Allied landing in Normandy, France. The five landing beaches were code-named Utah, Omaha, Gold, Juno, and Sword. Juno was the Canadian beach. About 14,000 Canadian soldiers landed on June 6 with naval and air support. Canadians advanced further inland on D-Day than any other Allied force.

Battle of Normandy — June–August 1944

Canadians fought through the Caen sector and the Falaise Pocket, ultimately closing a key German escape route in August. About 5,000 Canadians died in the Normandy campaign.

Liberation of the Netherlands — September 1944 to May 1945

The First Canadian Army under General Harry Crerar was assigned the task. Canadian forces advanced through the southern Netherlands in late 1944 and liberated the rest of the country in spring 1945, ending the Hunger Winter that had killed roughly 20,000 Dutch civilians. The Dutch still celebrate the Canadian liberation every May 5.

Battle of the Atlantic — 1939–1945

The longest continuous military campaign of WWII. The Royal Canadian Navy grew from 6 ships in 1939 to over 400 by war's end and escorted thousands of convoys carrying troops, food, and supplies between North America and Britain. Canadian Air Force squadrons also flew anti-submarine patrols.

• Conscription crisis (1944) — Mackenzie King avoided WWI-style conscription for overseas service until 1944, then used a careful political compromise to send some conscripts overseas
• Industrial transformation — Canada became a major arms producer, building ships, tanks, planes, vehicles, and ammunition
• Internment of Japanese Canadians (1942) — Around 22,000 Japanese Canadians were forcibly relocated from the BC coast to camps in the interior. The federal government formally apologised and paid compensation in 1988.

• Canada emerged as a middle power with a strong industrial base
• Canada was a founding member of the United Nations (1945) and NATO (1949)
• Postwar prosperity built the modern Canadian welfare state (universal healthcare, pensions, family allowance)

• "When did Canada enter WWII?" → September 10, 1939
• "What is Juno Beach?" → Canadian D-Day landing beach
• "Which country did Canadians liberate?" → The Netherlands
• "Who was Prime Minister during WWII?" → Mackenzie King

WWII questions are very common on the test. Drill them on our [free Canadian citizenship practice test](/practice-test). For WWI context, see [Canada's Role in World War One](/blog/canada-world-war-one-contribution).