It is acknowledged that no one single theory can explain international relations. Select no less than two aspects of Realism and no less than two aspects of Liberalism you think have validity. What...

It is acknowledged that no one single theory can explain international relations. Select no less than two aspects of Realism and no less than two aspects of Liberalism you think have validity. What are two aspects of each you view as value to making predictions or explaining global politics. Make sure you cite real world events and phenomena.