MAPS OF HISTORY · ON THIS DAY · September 28 · 1939
ON THIS DAY · 28 SEPTEMBER 1939
The siege of Warsaw
8–28 Sep 1939 — The capital holds out under three weeks of bombardment while its allies watch from behind the Maginot Line. Poland is partitioned by the month’s end.
THE MOMENT IN CONTEXT
The year opens with the move that kills appeasement’s premise. On 15 March 1939 — the short arrow from the north — German troops enter Prague unopposed; the Czech rump becomes the red “Protectorate of Bohemia and Moravia,” Slovakia a grey-tan client state. There is no plebiscite, no German minority to “rescue,” no self-determination fig leaf: the first non-Germans Hitler has annexed, and the proof that the program was never about Versailles. Chamberlain’s response takes two weeks to harden, then overshoots a decade of caution in a sentence: on 31 March, Britain guarantees Poland — a country it cannot reach with a single soldier. Mussolini, upstaged, grabs Albania in April (the ● across the Adriatic) and signs his “Pact of Steel” with Berlin in May, privately warning he cannot fight before 1943.
From Chapter 8 — Prague, the Pact, Poland of The Road to War, 1931–1941 (1939).
OPEN THE INTERACTIVE MAP →New here? Chapters 1–2 of every atlas are free to sample, and the WW2 atlas is free in full. One membership opens all thirteen — the Cartographer’s Circle.
TEACH THIS IN 5 MINUTES
- Why it happened — Prague converted the doubters. Every previous gamble had worn a costume of justice — plebiscites, minorities, treaty grievances. March 1939 came undressed. British opinion, press…
- The turn — The Kremlin, 23 August 1939. Ideology said this handshake was impossible — which is exactly what made it the hinge of the year. The pact did three things at once: it made the…
- What it changed — Eastern Europe is partitioned by annex. The protocol’s spheres became facts within a year: eastern Poland absorbed after a staged plebiscite, the Baltic states garrisoned then annexed…
Then ask the room: Should Britain and France have guaranteed Poland — a promise they could not keep — or was the guarantee the necessary end of appeasement? The argued answer is on the chapter page →
THE ATLAS THAT SHOWS IT
THE DISPATCH
One short letter when a new atlas opens — and the printable study guide for The Road to War is yours now, free.
NO TRACKING · YOUR ADDRESS IS USED FOR THE DISPATCH AND NOTHING ELSE · UNSUBSCRIBE ANYTIME