Non Western theories of international relations : conceptualizing world regional studies Introduction. Pages 1 15. Challenges to the Existing IR System and How They Are Viewed in the IR Literature in the Western and Non Western Segments of the World. Pages 17 52. From the Hegemonic Unipolar to the Multipolar World: Structural Transformation of the International System and Global Strategic Balance Plus Its Consequences for the Future. Pages 53 91. Appraising the Theory of Non Western IR and the Other Options Available. Pages 93 115. What Is Missing in the Western IR Theories: Space as a Core Dimension in World Regional Studies. Pages 117 148. Transformation of Space (1): Macro Regionalization and New Spatial Actors of International Relations. Pages 149 161. Transformation of the Space (2): Differentiation Within the World Space and Its Consequences for Conceptualizing a De Westernized IR. Pages 163 197. Integration of the Space in a Complex Glocality. Pages 199 228. Fusion of Past and Future in the Space of Global Regions and Regional Subsystems of Converging Multiple Modernities. Pages 229 247. Conclusion. Pages 249 256