The 7th (Service) Battalion of the Gloucestershire Regiment (the 'Glosters') was a unit of 'Kitchener's Army' raised immediately after the outbreak of World War I. After a short period of training it fought in the Gallipoli Campaign, distinguishing itself at the Battle of Chunuk Bair. Afterwards it served in Mesopotamia, including the capture of Baghdad. It ended the war with the North Persia Force at Baku on the Caspian Sea.