Transcription: World War I, the war to end all wars, was touched off when a Serbian terrorist assassinated the air to the Austro-Hungarian throne in 1914. American sentiment against the German alliance surged in May 1915 when a German U-boat sank the passenger liner Lusitania just days after leaving New York Harbor. Nearly 1,200 lives were lost. In April 1917, President Wilson asked Congress to declare war exhausting all diplomatic avenues with Germany. American entry into the war came as the fortunes of the Allied forces were approaching their low point. In the spring and summer of 1918, the Germans launche ...