Which international organization was formed after World War II to promote peace and security?

The United Nations was established in 1945, right after World War II, primarily to promote peace and security among nations and to foster international cooperation. One of its main objectives is to prevent future conflicts by providing a platform for dialogue and negotiation between countries. The founding of the United Nations was a direct response to the devastation caused by the war and the desire to create a more stable and peaceful global environment.

While NATO, the North Atlantic Treaty Organization, was formed in 1949 and focuses on collective defense, and the European Union, which has its roots in the post-war period as well, is centered on economic cooperation and political integration within Europe. The World Health Organization, created in 1948, is primarily concerned with global public health. Each of these organizations plays important roles in the international arena, but the United Nations is specifically tasked with the overarching goal of promoting peace and security globally.