MAPS OF HISTORY · ON THIS DAY · March 21 · 1918
ON THIS DAY · 21 MARCH 1918
Operation Michael
21 Mar 1918 — After a five-hour hurricane bombardment, 76 divisions of stormtroops break the British Fifth Army and advance 65 km in a week — farther than anyone since 1914. Then the guns, the supplies and the plan all fail to keep up.
THE MOMENT IN CONTEXT
At 04:40 on 21 March, 6,600 guns open the war’s greatest bombardment, and Operation Michael finally does what four years failed to do: breaks the trench. Stormtroops infiltrate through fog past strongpoints, the British Fifth Army ruptures, and in a week Germany advances 65 km — the map’s charcoal bulge toward Amiens. Then the pattern that will repeat in each of the five spring offensives (Michael, Georgette on the Lys, Blücher to the Marne — the three arrows): spectacular break-in, then starvation of the breakthrough as guns, shells and food fail to cross the wilderness the bombardment made, while exhausted stormtroopers loot Allied supply dumps in disbelief at the white bread and bully beef the blockade had made mythical. Ludendorff’s deeper failure is conceptual — “tactics without strategy,” punching where breaking was easy, not where it mattered. The offensives cost Germany a million casualties, spent disproportionately from its best units, and capture nothing that decides anything. Under the pressure the Allies finally do what four years hadn’t made them: appoint a single generalissimo, Foch. And Haig’s April order — “With our backs to the wall… each one of us must fight on to the end” — marks how close it felt.
From Chapter 10 — The Spring Offensives and the Hundred Days of The Great War, 1914–1918 (AUG 1918).
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TEACH THIS IN 5 MINUTES
- Why it happened — Why the trench finally broke. By 1918 both sides had solved break-in: predicted artillery fire (no registration, no warning), infiltration or armor to cross the zone, air…
- The turn — Amiens, 8 August 1918. Not the deepest advance of 1918 — but the day the German army stopped believing. Units yelled “strikebreaker!” at reinforcements; 15,000 men…
- What it changed — Five weeks, three armistices. Bulgaria (29 September), the Ottomans (30 October), Austria-Hungary (3 November — its emperor’s peoples already declaring independence behind it):…
Then ask the room: Germany’s spring offensives are often called tactically brilliant and strategically bankrupt. Could any German strategy have won in 1918 — or was the only winning move not to play? The argued answer is on the chapter page →
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