What is nationalism and how did it increase tensions among european nations?

What was the mame given to the idea that americans should expand across the nation ro the pacific coast

Why did the colonists believe that king george was trying to have them killed?

How has germany developed through the 19th centuryexplain in about 100 words the sequence of events that led to the nation’s unification.btw if u use any sources (aka websites) lemme kno