The historian Yuval Harari asserts that the next huge political issue will be whether we will choose the global or the local. As he puts it, we will have to choose between uniting humanity and nationalisms. Not left or right anymore. I have always thought of myself as an internationalist communitarian in contrast to a nationalistic individualist. Consequently, I support endeavours such as the United Nations and the EU. With all its history and shortcomings, Christianity has one aspect in its multidimensional arrangement that is very interesting to the political scholar. Christianity is basically an internationalist and communitarian movement. It had its holy wars, infighting and schisms but it spread and survived. It evolved. It became more reformist, through Western Protestantism, and, concurrently, it remained more conventional, through Eastern Orthodoxy. What is interesting from a political perspective is its ability to influence the fate of mankind. Consider concepts like human rights, healthcare, public education and the common good. At the basis of this endurance is its aptitude to decentralise its activities using subsidiarity as its ordinary administrative tool and...