I see a tension between national sovereignty as it is traditionally understood, in the so-called ‘Westphalian’ sense, and the universal common good that is demanded by both the precepts of natural law and the contemporary phenomenon of globalization.
In 2011, a note by the Vatican’s Pontifical Council for Justice and Peace incurred the ire of quite a few people on this forum as I recall, for uttering statements such as the following:
vatican.va/roman_curia/pontifical_councils/justpeace/documents/rc_pc_justpeace_doc_20111024_nota_en.html
Do some people honestly think that this is a “modern” idea in the Catholic Church? An infiltration by the “loony left” and utopian fantasies? Some manifestation of the ‘spirit of Vtican II’ that has no basis in the Church’s tradition? This could not be further removed from the truth.
I have here a monumental work of Catholic philosophy from the 19th century, which not only received the Nihil Obstat and Imprimatur but was published in 1876 with a brief from Blessed Pope Pius XI.
It called for precisely the same “universal society of nations”. I shall quote it in the next post.