Canada's increasind independance By Sina Jan 1, 1867 Confederation Period: Jan 1, 1870 to Jan 1, 1871 withdrawal of British garrisons from central Canada Period: Jul 28, 1914 to Nov 11, 1918 World War 1 Jan 1, 1931 Statute of Westminster Period: Sep 1, 1939 to Sep 2, 1945 Second World War Jun 6, 1944 Narmandy Invasion Period: Sep 2, 1945 to Jan 1, 1991 Cold War Nov 9, 1945 Creation of the UN Apr 4, 1949 Joining the NATO Jan 1, 1956 Peacekeeping after the Suez crisis Jan 1, 1982 Constitution Act Apr 17, 1982 Canadian Charter of Rights and Freedoms Dec 11, 1987 Free Trade Agreement Jan 1, 1995 review of foreign policy