MAPS OF HISTORY · ON THIS DAY · May 7 · 1915
ON THIS DAY · 7 MAY 1915
The Lusitania
7 May 1915 — U-20 torpedoes the liner off the Irish coast: 1,198 civilians drown, 128 of them American. The dead of the submarine war deserve their own memory — and the outrage begins the countdown on American neutrality.
THE MOMENT IN CONTEXT
On the world map, Britain controls the exits from the North Sea and uses that control to restrict Germany’s overseas trade. The blockade steadily reduced German access to food, fertilizer and raw materials, working slowly and contributing to severe civilian hunger. Estimates of how many Germans died of blockade-related causes remain disputed, but the reality of the deprivation is not in doubt.
From Chapter 6 — The Slowest Weapon of The Great War, 1914–1918 (JAN 1917).
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TEACH THIS IN 5 MINUTES
- Why it happened — Why Germany built a fleet it couldn’t use. Tirpitz’s “risk fleet” was meant to be dangerous enough that Britain would concede colonies and neutrality rather than fight. It achieved the…
- The turn — Convoy adopted, May 1917. Within six months of the first escorted convoys, shipping losses fall by two-thirds while U-boat sinkings double: the same ocean, the same boats, a…
- What it changed — America in. Unrestricted sinking plus the Zimmermann telegram (Berlin inviting Mexico to attack the United States — intercepted by British codebreakers and…
Then ask the room: Both blockades starved civilians to force a government’s hand. Is there a defensible moral line between the British blockade and the U-boat campaign? The argued answer is on the chapter page →
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