HMHS Llandovery Castle, built in 1914 in Glasgow as RMS Llandovery Castle for the Union-Castle Line, was one of five Canadian hospital ships that served in the First World War. On a voyage from Halifax, Nova Scotia to Liverpool, England, the ship was torpedoed off southern Ireland on 27 June 1918. Twenty-four people survived the sinking, while 234 doctors, nurses and patients were killed in the attack. In terms of the number of dead, the sinking was the most significant Canadian naval disaster of the war. (The Royal Canadian Navy had a seven-vessel naval force during the war.) The incident became renowned internationally as one of the war’s worst atrocities.