I know that They were following the rules of Mercantilism to keep foreign goods out. There's most likely more to this, though. I just looked this up and they (the british) needed to pay war debt, which is another reason Colonists were unhappy. They thought the colonists owned them beacause of the French and Indian war success
Fear of overthrow--European leaders were fearful they would be next in a liberal overthrow and banded together to protect the interests of their monarchies.
Klemens von Metternich of Austria convened the Congress of Vienna where he created a plan to protect the monarchies of Europe. Through alliances they all agreed to protect and defend each other if a revolution occurred in their country.
