Morality and international leadership

1) critically evaluating how realism, liberalism and constructivism has treated morality in international relationship (this section needs to cite key figures’ analysis, and the conclusion should be complicated, instead of just saying realism say morality does not matter, liberalism say it matters) 2) why moral leadership matters nowadays with the world getting more populist and seperatist (this section needs to include details of specific cases to show the tendency of populism); 3) how to define universal morality