Is it true or fale that the aftermath of WWII led directly to the collapse of Imperialism and the self-determination of former colonies?

The correct answer to this question is true – There was collapse of Imperialism and self-determination in former colonies after World War II. After the end of the Second World War in 1945, many nations mostly in Asia and Africa rejected being under the colonial system. They campaigned for their independence rather than remain under the European colonial system. Between 1945 and 1960, many nations had gained their independence and were complete out of the colonial system; their decisions and governance were self-determined.

As at 1946, there were about 35 members of the United Nations as the newly independent members were now part of the UN. By 1970, the number had drastically moved up to 127. These nations were regarded as “third world”. After the collapse of imperialism, many of these nations were working to develop their economies and resolving problem that arose as a result of the past colonial rule.