0 ч 30 мин, 7 май 1915 г. - Unrestricted U-boat War

Описание:

The U-Boat campaign was an offensive with the British ship. The German submarine which attacked the Lusitania (a passenger ship) killed over 1000 people died. It was an unrestricted war, meaning civilians were injured or killed. Germany called off the campaign but reintroduced it again in 1917.

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