Question

How did the crusades help lead to the creation of modern europe's nation states?

Answer 1

I think the answer is that the religious changes led to the formation of where modern European nation-states exist, their size, and population.

Answer 2

Answer:

The crusaders were christians in the Western Europe. They fought series of wars to reclaim territories which were once occupied by christians and was then dominated by muslims . Although they could not capture Jerusalem the holy land. They were key in the establishment of Europe. They helped strengthened the rulership of the king.  They extinguished feudalism and reduced some wars .

The Crusaders combated the Turkish empire. Some dominance of some muslim states on Europe would have been stronger if not for the crusaders

Explanation:

The crusaders were christians in the Western Europe. They fought series of wars to reclaim territories which were once occupied by christians and was then dominated by muslims . Although they could not capture Jerusalem the holy land. They were key in the establishment of Europe. They helped strengthened the rulership of the king.  They extinguished feudalism and reduced some wars .

The Crusaders combated the Turkish empire. Some dominance of some muslim states on Europe would have been stronger if not for the crusaders