In a nation state what role does shared religion play

Most people share the same religion.

Explanation:

The state is made up of the institutions that administer and laws that control a nation. In the case of Brazil, the country is governed by the Federal Constitution, ordinary laws, decrees, etc.  On the other hand, a nation comprises cultural elements that form its identity, such as language, traditions, customs, beliefs, etc. The country is defined by the geographical location where the state is established.

A nation state, in turn, is a type of sovereign political-territorial society, formed by a nation, a state, and a territory. That is, the nation-state brings together the legal system and all state institutions, including the people, the armed forces and its own currency, all its culture and its values in a well-defined geographical location.

In a nation state, most people share the same religion. The purpose of this shared religion is to make the inhabitants of the nation state share a common vision in pursuit of the same ideals.

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".