Marine (military)
The Royal Naval Division was part of the Royal Navy in the First World War. In 1914, the shortage of ground forces for the Western Front led to the creation of the Division, composed of two brigades of sailors and a brigade formed by the Royal Marines. The Division was part of the Royal Navy but for command purposes was integrated into the army's command structure. The sailors were initially disappointing as infantry, but eventually developed into one of the better divisions. The Division participated in the defence of the Belgian city of Antwerp in late 1914, and then served with heavy casualties at the Battle of Gallipoli. At different times the Division included various army units. The division ceased to exist after the end of the First World War.