A dutie is something that must be done, A responsibility is something that should be done but is not required.
For example, Our duties as citizens is to pay our taxes. But our responsibilities as citizens is to vote.
Hope this helped.
Because of political and social views of migrants
He did not want information going to the public that would make him look lie a fool, or start a rebellion
Cardinal Richelieu supported the centralization of power in France and strengthening the monarchy by removing outlying rulers.
They gained popular support by speaking out against Communists in the United States.