Lusitania was an Ocean liner of the Cunard Steamship Lines that was torpedoed and sunk by a German submarine on May 7, 1915, in an incident that played a role in the United State’s entry into World War I. The liner under British registration, sunk off the Irish coast by a German submarine. In the sinking, 1,198 persons lost their lives, 128 were US citizens. The vessel was unarmed, though the Germans made a point of the fact that it carried munitions for the Allies.
The existent sympathy for Germany to a large extent disappeared after the disaster, and there were demands from many for a declaration of war. Germany finally conceded its liability for the sinking of the Lusitania passenger ship. The incident, however, contributed to the rise of America sentiment for the entry of the United States into World War I, with recruitment posters two years later urging potential enlistees to “Remember the Lusitania!”.