Classical and Critical Geopolitics

Classical geopolitics emerged as a distinct field at the turn of the twentieth century, concerned with how physical geography shapes and constrains international power and strategy. Halford Mackinder, a British geographer, presented his Heartland Theory in a 1904 paper, "The Geographical Pivot of History," delivered to the Royal Geographical Society, arguing that the vast interior of Eurasia, which he termed the "pivot area" and later, in his 1919 book Democratic Ideals and Reality, the "Heartland," was the geographical key to global power, since it was inaccessible to naval powers yet increasingly traversable by railway. Mackinder's famous dictum, that "who rules East Europe commands the Heartland; who rules the Heartland commands the World-Island; who rules the World-Island commands the world," was intended as a warning to British policymakers to prevent any single power from dominating this Eurasian core, and it exercised significant influence on twentieth-century strategic thinking, including, controversially, on German geopolitical writing between the world wars.