The Lusitania was a British luxury passenger liner that was sunk by a German U-boat during World War I, resulting in the deaths of over 1,100 people. The incident caused outrage and helped turn the tide of public opinion against Germany, ultimately leading to the United States' entry into the war. The sinking became a symbol of German aggression and disregard for civilian life, contributing to the growing anti-German sentiment that eventually led to the United States' declaration of war in 1917.
