Answer:
Revolution
Explanation:
Revolution is the forceful overthrow of a government to install a new form of government or political system. Revolution usually constitutes conspiracy by large groups of people against the government of a country usually when the current government isn't meeting the needs of the people.
This is as exemplified in groups in Italy, Germany, France, Austria that tried to overthrow monarchy systems as a result of their dictatorial style of leadership that was unrepresentative of the people.