International relations theory is a composition of various thoughts and theoretical schools developed since the end of the 19th century, aiming to establish a framework for analyzing international relations. As the post-war regime and globalization have rapidly transformed international relations, international relations are essential for establishing national and global policies. This article will analyze the three classic international relations theory schools of realism, liberalism, and constructivism one by one to explore how these theories can achieve global peace and the stability of the international system.

Lin Huqing. To what extent is International Relations theory useful for policymakers and practitioners in dealing with change in world politics?. The Frontiers of Society, Science and Technology (2021) Vol. 3, Issue 4: 16-20. https://doi.org/10.25236/FSST.2021.030404.

[1] Alemán, J., & Woods, D. (2017). Inductive constructivism and national identities: letting the data speak. Nations and Nationalism, 24(4), 1023–1045. 

[2] Allen, J. W. P., & Bickhard, M. H. (2011). Emergent Constructivism. Child Development Perspectives, 5(3), 164–165. 

[3] Alexander Wendt, Social Theory of International Politics (Cambridge: Cambridge University Press, 1999), 283

[4] Assiter, A. (2013). Speculative and Critical Realism. Journal of Critical Realism, 12(3), 283–300.

[5] Brown, C. (2017). Political Thought, International Relations theory and International Political Theory: an interpretation. International Relations, 31(3), 227–240. 

[6] Chernoff, F. (2007). Critical Realism, Scientific Realism, and International Relations Theory. Millennium: Journal of International Studies, 35(2), 399–407. 

[7] Erman, E., & Möller, N. (2018). Political Legitimacy for Our World: Where Is Political Realism Going? The Journal of Politics, 80(2), 525–538. 

[8] Girvetz, H. K., & Dagger, R. (2020, February 5). Liberalism. Encyclopædia Britannica.

[9] Grant, J. A. (2018). Agential Constructivism and Change in World Politics. International Studies Review, 20(2), 255–263. 

[10] Greener, B. K. (2012). International Policing and International Relations. International Relations, 26(2), 181–198.

[11] GUZZINI, S. (2000). A Reconstruction of Constructivism in International Relations. European Journal of International Relations, 6(2), 147–182. 

[12] Hopf, T. (1998). The Promise of Constructivism in International Relations Theory. International Security, 23(1), 171–200. 

[13] Lomia, E. (2020). Political Realism in International Relations: Classical Realism, Neo-realism, and Neo-Classical Realism. International Journal of Social, Political and Economic Research, 7(3), 591–600.

[14] Meiser, J. W. (2018, August 5). Introducing Liberalism in International Relations Theory. Cruz, M. A, Barbazon, John J, & Ritzel, Scott M. (2020, February 3). The Utility of International Relations Theory to the Military Practitioner. Theories of International Relations.  

Marchant, P. D. (1955). Theory and Practice in the Study of International Relations. International Relations, 1(3), 95–102. 

[15] Onuf, N., & Klink, F. F. (1989). Anarchy, Authority, Rule. International Studies Quarterly, 33(2), 149.

[16] Rezaei, A. (2012). Book Review: International Relations: Cosmopolitan Power in International Relations: A Synthesis of Realism, Neoliberalism, and Constructivism. Political Studies Review, 10(1), 108–108. 

[17] Rösch, F. (2011). The invention of international relations theory. Realism, the Rockefeller Foundation, and the 1954 Conference on Theory. Journal of Transatlantic Studies, 9(4), 365–367.