It was "Germany" who was blamed for World War I and was made to the pay the greatest price, since Germany was hit with massive reparations after the war that were practically impossible to pay.
John Quincy Adams
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Germany retaliated by using its submarines to destroy neutral ships that were supplying the Allies.
The soldiers defended a base in Charleston Harbor called Fort Sumter. So, Confederate leaders ordered an attack. Just before sunrise on April 12, 1861, a shell exploded above Fort Sumter. It was the first shot fired in the American Civil War.