Which of the following is not one of the reasons responsible for the disintegration of the USSR?

Ignoring the rules framed by the United Nations

The correct answer is Option 3- Ignoring the rules framed by the United Nations

USSR was one of the world’s super powers, but after 1989 it simply broke up into several independent countries. One of the major reasons for its break up was the excessive centralisation and concentration of power, and the domination of Russia over other regions with independent languages and cultures of their own e.g. Uzbekistan. Some other countries like Czechoslovakia, Yugoslavia, and Pakistan also had to face a division of the country. Canada came very close to a break up between the English-speaking and the French-speaking regions of that country.