The article develops a theoretical model for analysing contemporary geopolitics through a macro-geographical, structural, and spherical perspective. It argues that global power in the twenty-first century is shaped by persistent spatial asymmetries rooted in hemispheric divisions (Western and Eastern), planetary axes (Northern and Southern), and the progressive verticalisation of geopolitical space. The proposed model, termed the Cross of the Four Worlds, conceptualises the international system as a three-dimensional configuration in which terrestrial, maritime, aerial, cyber, and extra-atmospheric domains form an integrated strategic continuum. The author concludes by presenting spherical geopolitics as a high-level analytical tool for understanding the persistence of global inequalities and the evolving geometry of power.
