While en route from New York to Liverpool, England, the Cunard liner RMS Lusitania was torpedoed and sunk off the coast of Ireland by a German submarine, U-20, with 1,198 lives lost. Fears for the safety of Lusitania and other liners that also sailed from ports such as Halifax ran high during this time due to the state of war with Germany. There were a number of Canadians as well as American citizens, onboard the ship. It was argued that the sinking shifted public opinion which led The United States to join the war two years later.