school of thoughts in international politics

The crucial important tools for international politics to understand the school of thoughts about the international politics including 1. realism, 2. liberalism, 3. structuralism, 4. Marxism etc. from these important thoughts, realism is crucially discussed all over the world as salient feature of international politics or relations. now realism can be discussed in a short way as a school of thought in below. realist thoughts assume that international politics is a struggle for power. to sum up, it cab be discussed that actors (states) gained power as a rational actor because of their survival in the anarchic world. then, actors increase their military power. in this view, realist assumed that international systems or orders is anarchic system. they also thought that this anarchic system is created because of natural way (classical realist). but Neo-classical assumed this system is created because of world system itself.