how did the united states respond when german u-boats sank the lusitania?
Americans still believed in their right, as members of a neutral nation, to travel unharmed. Of the 1,153 passengers on the Lusitania, 118 Americans died; President Wilson therefore warned the Germans that another aggressive act would provoke the United States to war. This warning inhibited the German Navy for almost two years, until the German Navy ceased to consider the United States an immediate threat.