Explain the main ideological positions of Realism, International Liberalism and Marxism by demonstrating your understanding of the significant differences (and some similarities) between these three international relations theory. Then finish your essay by choosing one of the three international relations theories as the best at describing international reality (as you think it truly exists), and one that you think would be best in managing international relations towards peace and justice, and why. The theory(s) you chose to answer the last part of this essay could be either different theories (among the three theories), or the same theory.