Realism Versus Neorealism

• Explain the similarities and differences between Classical realism (Morgenthau) and Neo-realism (Waltz and Mearsheimer).
• Contrast and compare ideal (classical) liberalism and neo-liberalism, and discuss whether they have been instrumental to explain the structures of the international system since 1945.
• By identifying its key actors and main features, determine and assess the degree of polarity within the international system since 1991.