war on Germany independently during World War II under Liberal Prime Minister William Lyon Mackenzie King, three days after Britain. The first Canadian Army units arrived in Britain in December 1939.
Canadian troops played important roles in many key battles of the war, including the failed 1942 Dieppe Raid, the Allied invasion of Italy, the Normandy landings, the Battle of Normandy, and the Battle of the Scheldt in 1944. Canada provided asylum for the Dutch monarchy while that country was occupied, and is credited by the Netherlands for major contributions to its liberation from Nazi Germany. The Canadian economy boomed during the war as its industries manufactured military materiel for Canada, Britain, China, and the Soviet Union. Despite another Conscription Crisis in Quebec, Canada finished the war with a large army and strong economy.
The Dominion of Newfoundland (now Newfoundland and Labrador) was unified with Canada in 1949. Canada's post-war economic growth, combined with the policies of successive Liberal governments, led to the emergence of a new Canadian identity, marked by the adoption of the current Maple Leaf Flag in 1965, the implementation of official bilingualism (English and French) in 1969, and the institution of official multiculturalism in 1971. Socially democratic programs were also instituted, such as Medicare, the Canada Pension Plan, and Canada Student Loans, though provincial governments, particularly Quebec and Alberta, opposed many of these as incursions into their jurisdictions. Finally, another series of constitutional conferences resulted in the 1982 patriation of Canada's constitution from the United Kingdom, concurrent with the creation of the Canadian Charter of Rights and Freedoms. In 1999, Nunavut became Canada's third territory after a series of negotiations with the federal government.
At the same time, Quebec underwent profound social and economic changes through the Quiet