Social 11: Cold War Timeline


United Nations

26 June 1945 - Approx. Present

The United Nations is created in San Francisco to prevent global conflict and keep collective security.

Defection of Igor Gouzenko

6 September 1945

Soviet spy Igor Gouzenko defects to Canada and exposes a Russian spy ring in Canada.


25 August 1949 - Approx. Present

the North Atlantic Treaty Organization is created as a military defense alliance.

Korean War

June 25,1950 - July 27,1953

Canada sends 27, 000 troops to the Korean War in a United Nations-supported military action. This was a peacemaking.

Lester Pearson - Canada's ambassador

Approx. 1952

Lester Pearson becomes Canada’s ambassador to the United Nations.


14 April 1955 - 31 March 1991

In response to NATO, the Eastern Bloc countries signs Warsaw Pact.

Vietnam War

1 November 1955 - 30 April 1975

A war that occurred in Vietnam, Laos, and Cambodia, the war is also considered a Cold War-era proxy war.

Suez Crisis

29 October 1956 - 7 November 1956

Suez, Egypt: First U.N. peacekeeping troops, negotiated by Lester Pearson, prevents a war.

Lester Pearson - Nobel Peace Prize

Approx. 1957

Lester Pearson wins the Nobel Peace Prize for his efforts in defusing the crisis.

Cancellation of the Avro Arrow

20 February 1959

Diefenbaker’s Conservatives cancel the Avro Arrow project.

Cuban Missile Crisis

October 14, 1962 - October 28, 1962

It was the closest the Cold War came to escalating into a full-scale nuclear war between the U.S. and Soviet Union.

Cyprus issue

Approx. 1964 - Approx. 1974

An intercommunal violence between the Greek Cypriots and Turkish Cypriots. Canada participates in a U.N. peacekeeping mission to Cyprus.

Trudeau's Foreign Policy


Trudeau visits China


Pierre Trudeau visits Communist China on a peace mission.

Berlin Wall comes down

November 1989

Berlin Wall comes down, symbolizing the disbandment of Soviet Union.

Gulf War

4 August 1990 - 28 February 1991

Canada sends troops to support the U.S. in the Gulf War against Iraq. This action was peacemaking.

Bosnia War

6 April 1992 - 14 December 1995

Bosnia and Herzegovina's religious conflicts lead to the outbreak of war.

Somalia Affair

Approx. 1993

A military scandal later dubbed "Canada's national shame". It peaked with the beating to death of a Somali teenager at the hands of two Canadian soldiers participating in humanitarian efforts in Somalia.

Rwanda genocide

7 April 1994 - 15 July 1994

U.N. Tried to help but failed,close to a million people had died within a few weeks,including many women,old people and babies.