When Britain went to war on August 4, 1914, Canada and Newfoundland automatically joined. The success at Vimy Ridge helped Canada build a stronger national identity and be seen as more independent from Britain. After the war, Canada gained more independence and started to stand out as its own country. Newfoundland's loss in the war also led it to join Canada in 1949.

The War Measures Act, passed on August 22, 1914 is historically signifigant becasue it gave the Canadian government emergency powers to make decisions without Parliament, control trade, and censor communication. It was controversial for taking away civil rights and putting people labeled as “enemy aliens” in camps. Used in both world wars, it raised concerns about the balance between safety and individual freedoms.

The Second Battle of Ypres, fought from April 22 to May 25, 1915, was historically significant as it marked the first major battle for Canadian soldiers in World War I, helping to shape Canada's national identity. The battle showed that Canada was more than just a British colony, as its troops fought courageously on the front lines, earning respect and recognition. This success also sparked a rise in nationalism, particularly among English Canadians, though it increased tensions with French Canadians. The victory at Ypres enhanced Canada's military reputation and played a key role in giving the country more political influence, allowing it to have a stronger voice in wartime decisions and marking a step toward greater autonomy.

The Battle of Vimy Ridge, fought from April 9-12, 1917, was a defining moment in Canada’s history. More than just a military victory, it symbolized Canada’s growing independence and national identity. The success of the Canadian soldiers showcased their strength and unity, earning the country greater recognition on the world stage. This battle fueled national pride and helped shape Canada’s role in global affairs. Today, the Vimy Ridge Memorial stands as a lasting tribute to the sacrifice and contribution of Canadians in the war.

The government changed the election rules, giving some Canadian women the right to vote for the first time. However, it also removed voting rights from certain Canadians, particularly those of "enemy aliens" and some others. The Act was mainly intended to gain support for conscription during World War I and significantly impacted the Canadian election system.

The 1917 Canadian federal election was significant because it introduced conscription during World War I, leading to the formation of a Union Government and deep divisions between English and French Canadians, especially in Quebec. It was also the first election where some women could vote. Borden's government won, while Wilfrid Laurier's Liberal Party lost support.

The 1918 Federal Election is historically significant as it marked the end of World War I and highlighted Canada's growing independence. The Canadian Corps’ successes in battles like Amiens and Arras showed Canada's military strength, contributing to the Allied victory and shifting Canada away from British colonial ties. The election also saw the introduction of women’s suffrage and reflected political changes, including the ongoing debate over conscription.

The Armistice, signed on November 11, 1918, at 11 a.m., marked the end of World War I and is historically significant for its impact on Canada’s national identity. This day, now known as Remembrance Day, began as Armistice Day in 1919, with King George V calling for a two-minute silence at 11 a.m. to honor fallen soldiers. This tradition became widely observed in Canada, symbolizing respect and remembrance. In 1921, Canada made Armistice Day a legal holiday, and in 1931, it was separated from Thanksgiving, becoming solely a day of remembrance for those who sacrificed their lives during the war.