Serviceman and sea cadets bow their heads during the prayer service at HMS Caroline on May 31, 2016 in Belfast, Northern Ireland. HMS Caroline is the last surviving ship from the 1916 Battle of Jutland and today hosted a special all island commemoration service ahead of it's reopening to the public tomorrow after a major restoration project. The Battle of Jutland is remembered as the largest and deadliest naval battle of World War One, where more than 6,000 British and more than 2,500 German personnel lost their lives in the 36-hour Battle off the coast of Denmark.