On Patriotism

Citizens should cultivate a generous and loyal spirit of patriotism, but without narrow-mindedness, so that they will always keep in mind the welfare of the whole human family…Christians must be conscious of their specific and proper role in the political community; they should be a shining example  by their sense of responsibility and their dedication to the common good. Those with a talent for the difficult and noble art of politics…must combat injustice and oppression, arbitrary domination of others…and must dedicate themselves to the welfare of all in a spirit of sincerity and fairness, of love and of the courage demanded by political life.
 
Vatican II: Gaudium et Spes # 75