On February 4, 1915, Germany declared the waters around Britain a war zone. On April 22, . Captain William Thomas Turner was the captain of the RMS Lusitania on her last voyage. In the afternoon of May 7, 120 miles west of the southern tip of Ireland, the U-20 U-boat, commanded by Walther Schwieger, fired a missile at 3:10 PM at the Lusitania. 1,198 people died, with 761 survivors. Though the ship was carrying war ammunition, people were horrified by the deaths of the passengers.