
Hemispheric Realignment and the Reconstitution of Regional Power Dynamics in the Western Hemisphere
In early 2026, the Western Hemisphere is witnessing a seismic shift in geopolitical alignment. Driven by the December 2025 National Security Strategy (NSS) and the implementation of the “Trump Corollary” to the Monroe Doctrine, Washington has re-prioritized the Americas as its primary strategic theater. This realignment focuses on three pillars: the exclusion of non-hemispheric powers (China and Russia), the securitization of migration and trade, and the direct use of “regime change” as a tool of stability.