In April 1945,delegates from fifty-one countries, including Canada , dew up a charter for the United Nation. The United Nation was based on the idea of collective security.
In September 1945, Soviet spy Igor Gouzenko defected to Canada and exposes a Russian spy ring in Canada. By February 1946, The RCMP found 26 Russia spies.
NATO – the North Atlantic Treaty Organization – is created as a military defense alliance because of fears created by the Cold War with Russia and its allies.
North Korea invaded South Korea. The war broke out. Canada sends 27, 000 troops to the Korean War in a United Nations-supported military action. This was peace making.
Lester Pearson becomes Canada’s ambassador to the United Nations.
In order to response to the NATO, The Eastern Bloc countries sign with Russia.
During Vietnam War, Canada Prime Minster Pearson shared the growing doubts that many Canadians had about the war. In 1965, he criticized Operation Rolling Thunder which the U.S bombing campaign of North Vietnam at a university in Philadelphia. Later he had lunch with the U.S president and criticize him in America.
First U.N. peacekeeping troops, negotiated by Lester Pearson, prevents war.
Lester Pearson wins the Nobel Peace Prize. Because his part in preventing all out war, Pearson won the Nobel Peace Prize.
The Arrow was a state of the art supersonic jet aircraft which developed by Canada. It was at the forefront for technology at the time. However , the project was canceled by Diefenbaker’s Conservatives in 1959.
The U.S. and Soviet Union come close to nuclear war. Prime Minister Diefenbaker preferred that the United Nations send a fact-finding mission to Cuba, and implied that he did not believe the U.S. photograph. And he seemed reluctant to have Canada got into a major conflict that relate to the US policy and interest.
Canada participates in a U.N. peacekeeping mission to Cyprus. Canada's longest peacekeeping mission.
Trudeau’s government officially recognizes Communist China (rather than Taiwan).
Pierre Trudeau visits Communist China on a peace mission.
Pierre Trudeau visits Communist Cuba
Berlin Wall comes down, symbolizing the end to the Cold War.
Canada sends troops to support the U.S. in the Gulf War against Iraq. This action was Peace making .
Soviet Union dissolves into 15 countries.
One night, members of the Canadian Airborne Regiment arrested a Somali teenager found wandering in the Canadian base camp. During the night, the teen was tortured and beaten to death.
In 1991, ethnic wars broke out in the former Yugoslavia. Slobodan Milosevic, leader of the Federal Republic of Yugoslavia, began to talk about establishing a greater Serbia by uniting all the Serbian population from surrounding states into one country. By 1992, the war spread to the Republic of Bosnia- Herzegovina, which formed part of Yugoslavia.
Canada sends soldiers and later police.
In the central African country of Rwanda, it was torn apart by ethnic rivalries.This disaster is also called " 100 days of slaughter".