In the Seven Years’ War, Frederick the Great had been an ally of Pitt. During his reign, 1740–1786, “Prussia spent fewer years at war … than any other major European power.”116 In the Napoleonic wars, Prussia had been overrun and almost vanished from the map and Prussians under Field Marshal Gebhard von Blücher had come to Wellington’s rescue at Waterloo. In the three wars Prussia fought between 1815 and 1914, the first was provoked by Denmark in 1864 and involved disputed duchies. The second, in 1866 with Austria, over the same duchies, was a “Teutonic” civil war of seven weeks, and a far
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