Social Contract: Social contract is sort of like a demography it is what leads to natural rights, it is what Thomas Hobbes, John Locke, and Jean-Jacques Rousseaua came up with.
Right of revolution: The right of revolution is like the right of rebellion, it originated from China. It was used many historical facts like: the War of French religion, Glorious Revolution, and American Revolution.
Popular Sovereignty: It is the other way of saying the sovereignty of the people. It is when the people that rule the country have the control over it.
Self Determination: Self determination is sort of like a democracy. It is when a country chooses how the country is going to be ruled and how they want it to be.