The international peacekeeping organization formed directly after World War II was the United Nations. Thus, option D is correct.
World War II has been fought against the invasion of Nazis in Poland from 1939 to 1945. The war involved 30 countries and has been led up to 6 years.
<h3>World War II</h3>
World War II has been the failure of the peacemaking organization, the League of Nations. Thus, after the war, the peacemaking organization The UN, or United Nations has been formed.
It has been responsible for resolving conflicts between the nations and deciding the punishments for the nation that breach the peace of world.
Thus, the organization formed after World War II has been the United Nations. Thus, option D is correct.
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