Churchill names the divide before most people can see it
What happened
At a small college gymnasium in Fulton, Missouri, with President Truman seated on the platform beside him, Winston Churchill delivered a speech he titled The Sinews of Peace. Barely a year after the Allied victory, Churchill warned that from Stettin in the Baltic to Trieste in the Adriatic, an iron curtain has descended across the Continent, naming Warsaw, Berlin, Prague, Vienna, Budapest, Belgrade, Bucharest, and Sofia as cities now falling under Moscow's control. He also proposed, largely forgotten today, that the fledgling United Nations organize its own international air force. Churchill was a private citizen with no official position; he stressed repeatedly that he spoke only for himself, not for the British government.
Why it matters
Churchill's speech gave the emerging split between the wartime Allies its lasting name and image, and it landed months before Soviet and American policy had actually hardened into open rivalry, making it less a description of the Cold War than an early warning that helped bring the Cold War's own logic into being.
How we know
The full text of the Fulton speech was recorded and broadcast, and survives complete in Churchill's own published papers, letting historians read exactly which cities and mechanisms he named rather than relying on later paraphrase.
Sources
- Winston Churchill, via America's National Churchill Museum. The Sinews of Peace (Iron Curtain Speech) · Primary source (author-declared)nationalchurchillmuseum.org · Cited as a "primary" source (no stronger domain match). · Link is live and its text matches the event's key terms (Jul 2026)
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