Research June 29, 2026
The Three Seas Gamble: Can Poland Unite Central Europe?
The British geographer Halford Mackinder viewed Central Europe as critical to geopolitics. Over a century ago, he defined his “Heartland Theory” as follows:
“Who rules East Europe commands the Heartland; who rules the Heartland commands the World-Island; who rules the World-Island commands the world.”
Poland, the heart of Central Europe, occupies a unique position, as it is both defined and constrained by its geography. Too small to rival Europe’s major powers yet too large to be deemed comparable to its smaller neighbours, the country has ever walked a tightrope.
Poland has achieved one of the fastest and most sustained economic growth trajectories of the 21st century, especially in Europe, emerging as a standout success in post-communist economic transformation.