Answer:
The methods and roles of leaders and organizations in the movement for independence in the period between 1945 and 1975 were the following.
We are talking about countries such as Cuba, Vietnam, Israel, China, Ghana, and India.
So let's set the example of Cuba. Cuban leader Fidel Castro organized the Revolution in Cuba and deposed President Fulgencio Batista in January 1959, after six years of struggle on the island. The United States had supported president Batista, but the Cuban leader and the Communist forces were backed by the Soviet Union.
So we can say that Castro and other leaders of the time, showed the courage, determination, and character needed to organize his people and start independence movements to grant freedom for their respective countries, as was the case of Mahatma Gandhi in India, or Mao Zedong, in China.
Hope it helped! :)