information:classification
Regime type

It is often considered that a state's form of government can dictate the way that a state interacts with others in the international relation.

Democratic peace theory is a theory that suggests that the nature of democracy means that democratic countries will not go to war with each other. The justifications for this are that democracies externalize their norms and only go to war for just causes, and that democracy encourages mutual trust and respect.

Communism justifies a world revolution, which similarly would lead to peaceful coexistence, based on a proletarian global society.