加拿大国际治理创新中心CIGI：2025年四极世界：理解二十一世纪的地缘政治特别报告（英文版）

The current geopolitical environment is defined by constantly changing dynamics among countries: long-standing partnerships are disintegrating while other alliances are strengthening. To better understand a world in flux, this special report presents the quadripolal geopolitical framework (QGF) in which four powers — the United States, China, India and Russia — serve as autonomous strategic poles. The framework seeks to capture the fluid, multidimensional nature of twenty-first-century geopol