Catholic Church in Ireland
In the 2016 Irish census 78.3% of the population identified as Catholic in Ireland; numbering approximately 3.7 million people. Unlike Catholics in the United States, Ireland has seen a significant decline from the 84.2% who identified as Catholic in the 2011 census.
Territoriality (nonverbal communication)
An example of this would be the conflict in Northern Ireland. The island of Ireland as a whole and the Republic of Ireland (which has the majority of the island's area and residents) both have Catholic majorities while the United Kingdom and Northern Ireland (which is a part of the UK and constitutes less than half of the island of Ireland's area and residents) both have Protestant majorities. Many Irish people in both Northern Ireland and the Republic of Ireland don't want Northern Ireland to be a part of a nation that is not Catholic-majority, since Catholicism is the religion of the majority of the Irish nation and the religion of the majority of people on the island of Ireland. Territorial disputes in Northern Ireland have been justified by religion. This is an example of how religion can play a strong role in territoriality.