MAPS OF HISTORY · The Road to War · ALL CHAPTERS · CHAPTER 9
CHAPTER 9 · 1939–1940 · 1940
The Fall of the West
The map above is the world of JUN 1940 — The West falls.
The winter belongs to Stalin’s half of the bargain. On 30 November 1939 the Soviet Union attacks Finland — the ✕ in the snow at the map’s top — expecting weeks; it gets a catastrophe-education: perhaps 130,000 Soviet dead against a nation of four million before Finland, unrelieved by anyone, cedes Karelia in March but keeps its state. The League of Nations, in its final official act of consequence, expels the USSR — the machinery managing, at the very end, one gesture. Two audiences take notes: Berlin, where the Red Army’s stumble feeds the fatal underestimate of Chapter 11, and London-and-Paris, whose half-planned expeditions to help Finland (via, conveniently, Swedish iron fields) telegraph Scandinavia’s importance. In April 1940 Hitler moves first — the arrow up the Norwegian coast — taking Denmark in a morning and Norway in two months of fighting that gut his surface navy but secure the iron road.
Then, on 10 May, the West. Watch the two arrows: the northern one into the Netherlands is the matador’s cape — paratroopers, the terror-bombing of Rotterdam’s old center (the ● there; the city surrenders that evening, the country hours later) — designed to draw the French army and the British Expeditionary Force racing north into Belgium. The southern arrow is the sword: seven panzer divisions threading the “impassable” Ardennes, across the Meuse at Sedan by day four, then a scythe-cut west to the sea that traps the Allies’ entire northern wing. The ✕ at Dunkirk marks the deliverance-that-is-not-a-victory: 338,000 soldiers lifted off the beaches while the panzers pause. On 22 June, in the same railway carriage where Germany signed in 1918 — Hitler’s theatrical ● at Compiègne — France signs an armistice that cuts the country into the occupied red north and coast and the grey-tan “Free Zone” of Vichy, a regime whose collaboration will be its own chapter of reckoning. France’s fall detonates every strategic assumption on both maps at once — including, note the ✕ at Mers-el-Kébir, Britain’s: on 3 July the Royal Navy shells the French fleet at anchor in Algeria, killing 1,297 French sailors in minutes, rather than risk it joining Hitler. The ✕ over London is the summer’s answer to the year’s question: the Luftwaffe fails to break Fighter Command, the invasion is shelved, and the war Hitler expected to end in 1940 does not end.
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THE SITES
ON THIS DAY
WHY IT HAPPENED
Sickle-cut was a gamble that punished exactly the Allies’ preparation. The original German plan was a 1914 replay through Belgium — which is precisely what Allied planning (the Dyle-Breda advance) was built to meet. Its compromise in January 1940 (a courier plane with the plans crashed in Belgium) opened the door to Manstein’s alternative: mass the armor where the Allies believed armor could not go. The plan’s brilliance is inseparable from its luck — a French reconnaissance report of columns in the Ardennes was discounted; Sedan’s defenders were second-line reservists. The deeper cause: French doctrine had distributed tanks as infantry support and assumed a continuous front; the Germans concentrated theirs and assumed nothing. France had more tanks, and many better ones. Doctrine, not hardware, decided May 1940.
Eight months of phoney war spent the Allies’ advantages. Time was supposed to be the democracies’ weapon — blockade tightening, rearmament maturing, the empires mobilizing. Some of it worked (British aircraft production overtook Germany’s in 1940). But the pause also let Germany digest Poland, train on its lessons, and pick its moment; it drained French morale into boredom and defeatism; and it left neutrals — Belgium above all — clinging to a neutrality that forbade joint planning until the invasion morning, so the Allies’ best armies advanced into Belgium along roads they had never been allowed to survey.
Neutrality was a strategy, and it failed everywhere. Every small state on this map’s northwest had chosen neutrality as the lesson of 1914–18 and of the League’s failures (Belgium formally since 1936, Ch. 5). In April–May 1940 the strategy’s premise — that legal status deters — was falsified in six countries in six weeks. The map is the argument: the parchment of 1939 turns red not because the neutrals provoked anyone but because their territory was useful. Neutrality survives, the era teaches, only where geography or great-power convenience underwrites it — Switzerland, Sweden, Iberia.
Vichy: defeat, then choice. The armistice was arguably forced; the regime that followed was chosen. A parliamentary majority handed full powers to Pétain in July 1940; “collaboration” was Vichy’s own word (Montoire, October), offered in hope of a favorable place in Hitler’s Europe. The distinction matters for the map: the grey-tan south is not occupied — that is the point — it is a client, policing itself, legislating antisemitically ahead of German demand. France’s agency did not end in June 1940; it divided, between Vichy and the Free French broadcast from London the day of the armistice request.
THE TURN
Compiègne, 22 June 1940. One railway carriage, used twice, is the era’s neatest symbol — but the 1940 signing is the deeper turn because of what it destroyed off the map: every calculation in every capital had assumed the French army. Its collapse in six weeks orphaned British strategy (hence Mers-el-Kébir eleven days later), reoriented American opinion overnight (the Two-Ocean Navy Act passed in July; the first peacetime draft in September), presented Japan with suddenly ownerless colonial Asia (Ch. 10), and convinced Hitler he was infallible precisely when his next project required him not to be (Ch. 11). Historians debate whether Britain seriously considered terms that summer — the War Cabinet argued it over three days in late May, and chose Churchill’s answer. The world war that followed was built on the ruins of the assumption that fell at Compiègne.
WHAT IT CHANGED
The Mediterranean ignites. Mussolini declared war on 10 June, “needing a few thousand dead for the peace table” — opening the parallel war of Chapter 11: Egypt invaded from Libya in September, Greece from Albania in October, both disastrously for Rome, both draining Germany into rescue operations that rearranged the calendar of Barbarossa.
America crosses from neutrality to non-belligerence. France’s fall broke US isolationism’s central premise — that Europe’s democracies were a sufficient outer wall. Destroyers-for-bases (Sept 1940), history’s first peacetime conscription, and Lend-Lease (March 1941) followed within nine months: a neutrality re-engineered, in Roosevelt’s phrase, into being the “arsenal of democracy.”
Asia’s colonial powers are suddenly ghosts. The Netherlands occupied, France a client, Britain fighting for its life: the tan empires of the Pacific map now belong to owners who cannot defend them. Within three months Japan is in northern Indochina and the Tripartite Pact is signed. The two theaters of this atlas begin to merge.
FIELD QUESTION — Was the fall of France a military defeat or a national collapse — and why does the answer matter?
The “decadence” reading — a Third Republic rotten with division that deserved its fate — was written first by Vichy itself (the defeat as moral judgment) and long echoed abroad. Modern scholarship (Ernest May, Julian Jackson) has largely dismantled it: France in 1940 fielded more tanks than Germany, fought — 50,000–90,000 French soldiers died in six weeks, a rate comparable to Verdun — and fell to a specific, contingent operational failure: a bad doctrine meeting a brilliant gamble at Sedan. The answer matters because each reading carries a policy moral. If France collapsed morally, the lesson is about national character — comfortable and useless. If France lost operationally while fighting hard, the lesson is that doctrine, command tempo and the location of reserves can undo material equality in days — a lesson every general staff since 1940 has studied. And it matters for justice: the “collapse” story was the alibi of the regime that used defeat to bury the Republic.
AN INTERESTING FACT
The armistice carriage’s afterlife completes the story: Hitler had Compiègne’s memorial site dynamited and the carriage hauled to Berlin as a trophy, where crowds queued to see it; in 1945, with the war lost, SS troops destroyed it — by most accounts burned near Crawinkel in Thuringia — so it could never stage a third signing. The French memorial clearing was rebuilt after the war with a replica carriage of the same series, and the original’s scattered fittings that survive are displayed beside it.
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