what led to the increase in successful Independence movements in Africa and Asia following the World War II

There were numerous factors that contributed to the successful independence movements in Africa and Asia, some of which were the economic conditions of the imperial countries, the formation of the United Nations, the global propaganda and push for liberation and living the people rule their own countries ...

After the World War II ended, the imperial countries were in terrible economic conditions. This meant that they had to focus on rebuilding their countries, thus having no power to retain their imperialism.

The United Nations was formed after the World War II, and some of the goals of this organization were the respecting of human rights, living the people decide for their own future, and the abolishing of the imperialism. That was also supported by the numerous movements for independence around the world, the political propaganda, and the large international support.

All of that led to independence of the Asian and African countries, though the setting of the borders created lot of problems for them.

After the Second World War several established colonial empires in Asia and Africa were disappearing and many new countries gave way to their independence, this was due to several reasons such as: diversification of the economy, population growth and the extension of nationalism and socialism in the colonial zones. The ONU was against colonization arguing that the subjection of the peoples to foreign domination and exploitation is a denial of the fundamental rights of man and would provide full support to the Non-Self-Governing Territories to achieve their independence. The Second World War prompted great technological innovations, but the economy of many empires was damaged and they had the need to reach agreements to begin their reconstruction.