How did Europe change after Napoleon was defeated?

Germany got stronger from over three hundred states or statelets, into about thirty states. Prussia was given some provinces in the Rhineland, west from their heartland.

The main change was that Germany was consolidated from over three hundred states or statelets, into about thirty states. Prussia was given some provinces in the Rhineland, far west from their heartland.

Explanation:

i believe that the answer to the question provided above is that  establishing smaller ethnic communities within larger communities  gives more chance for people to know each other more but this might lead to the  conflict between groups.