U-570, captured on August 27, 1941, was the only submarine to see active combat service with both the British Royal Navy and the German Kriegsmarine. But U-570 was not the only submarine whose capture served an enemy in the Second World War.
In August of 1918, as the armies of Europe neared exhaustion, American troops of the 28th “Keystone” division were thrown into a nearly forgotten battle that fully represented the horrors of the War to End All Wars.
Of the vaunted ironclad warships of the US Civil War perhaps the mightiest and most terrifying was the confederate ram Tennessee. On August 5, 1864, she would be put to the test in the largest naval engagement of the war, an engagement that defined the divided loyalties of the War of the Rebellion.