The Kaiser's U-Boat Assault on America: Germany's Great War Gamble in the First World War

Why did a long time reluctant US President Wilson finally enter World War I on the side of the Allies in April 1917?In retaliation of the British naval blockade of Germany since August 1914, the German Admirals determined at the beginning of 1915 to create a counter-blockade of the British Isles with their submarines.The U-boat commanders got - without knowledge of the government - a secret order to sink Allied passenger liners.The British Admiralty discovered the hunt for passenger liners by deciphering W/T messages to the U-boats.The sinking of the Lusitania on May, 6th, 1915, was no coincidence - the Royal Navy knew about the intentions of the U-boats and, after doing everything to protect the passenger liners in the beginning, they simply left the Lusitania alone in in the first week of May, to create frictions between America and the German Empire.A diplomatic quarrel between US President Wilson and Germany about U-boat warfare commenced. In spring of 1916 the German Navy acted ag