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1945 CE / Americas

The United Nations and the Postwar International Order

In the final phase of the Second World War, countries signed the United Nations Charter, seeking to maintain peace and pursue international cooperation through collective institutions.

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Era
Modern World
Region
Americas
Theme
Politics
An imagined early twenty-first-century city: a tram passes a plaza where people walk, cycle and gather by trees and streetside shops.
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The story

The United Nations Charter was signed in San Francisco in June 1945 and entered into force on October 24 that year. The destruction and atrocities of the Second World War prompted countries to seek new arrangements for peace, and the Charter established principles such as sovereign equality and international cooperation. The special powers of the permanent members of the Security Council also reflected the postwar distribution of power. The United Nations provides a continuing platform for consultation and action, but cannot automatically eliminate war; its role is constrained by the willingness and resources of its member states.

Elsewhere in the world

Decolonization in Asia and Africa subsequently broadened the United Nations' membership, extending global governance issues beyond the great-power agenda of its founding period.

Dates and precision

1945 CE Documented date

Positioned by the documented year, month or day; missing months and days are not inferred.

Representative map location

Representative coordinates · 37.78°, -122.42°

Coordinates locate a representative point for the story. They do not mean the event happened only here and do not represent historical borders.

Bibliography

  • United Nations | UN Charter

Sources are listed as bibliography titles, without external links. A reference does not mean every sentence or interpretation has been independently verified.

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  1. 1945–1949 CE · South & Southeast Asia

    Indonesia's Declaration of Independence and Anticolonial War

    Sukarno and Hatta declared independence, followed by war and negotiations with the Netherlands; the transfer of sovereignty in 1949 and the declaration of independence in 1945 were distinct milestones.

  2. September 1945 CE · East Asia

    Victory over Japan and the Surrender in the China Theater

    Japan signed the instrument of surrender, and the surrender ceremony for the China theater took place in Nanjing; after the war against Japan ended, peace and reconstruction were soon disrupted by the Chinese Civil War.

  3. May 3, 1947 CE · East Asia

    Japan's Postwar Constitution and Institutional Reconstruction

    After its defeat, Japan rebuilt its institutions under occupation; the new constitution took effect in 1947, establishing popular sovereignty, fundamental rights, and the principle of renouncing war.

  4. August 1947 CE · South & Southeast Asia

    Independence and Partition in South Asia

    British colonial rule ended and India and Pakistan became independent; partition also brought mass migration, violence, and enduring disputes.

Read this era · Modern WorldRead this region · Americas

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