The geopolitical concept posits that control of the Eurasian landmass’s core, specifically Eastern Europe, equates to dominance over the world. This area, largely inaccessible by sea power, possesses immense resources and strategic depth. Its control theoretically allows for the projection of power outwards, influencing or controlling peripheral regions.
Its significance lies in its influence on geopolitical thinking during the 20th century, particularly in the context of resource control and strategic positioning. It informed strategies during the Cold War and continues to be relevant in discussions of global power dynamics and resource competition. Though criticized for its deterministic view, it highlighted the enduring importance of land power in global affairs.