Anarchy is the state of society being freely constituted without any authorities or government. Anarchy can happen after a Civil War within a country, after its previous government has been destroyed. With no government, rival groups fight to take it's place. There are also people called anarchists who believe that any kind of government is a bad thing. They think that the government controls their lives and believe that they would be better off doing as they pleased and living life as their own rulers.
Aristocracy
We are the government!
A dictatorship is a government where one person makes all the rules and decisions without input from anyone else. Dictatorship implies absolute power and one person who takes control of a political situation, a family, a classroom or even a camping expedition.
Theocracy
Monarchy, political system based upon the undivided sovereignty or rule of a single person. The term applies to states in which supreme authority is vested in the monarch, an individual ruler who functions as the head of state and who achieves his or her position through heredity.
Democracy
Aristocracy is a form of government that places strength in the hands of a small, privileged ruling class, the aristocrats. They give power to people based off of how wealthy they are or how much power they have. Often, aristocrats inherit their positions, often through centuries of family lineage. An example of an aristocracy is Britain's Royal family. Another example of an aristocracy is the Kennedy family in the United States.
Theocracy a system of government in which priests rule in the name of God or a god. Theocracies can have one or more rulers, like religious clergy, but these rulers are guided in their thoughts and actions through one or more deities. The power of the religious leaders comes from God and the rules that they create are based off of their religious beliefs and customs.
Everyone must believe in God!
Democracy is a form of government in which the people have the authority to choose their governing legislators. there are as many different forms of democracy as there are democratic nations in the world. No two systems are exactly the same. Democratic systems can nearly always be made more inclusive, more reflective of more people's wishes, and more responsive to their influence.