The North Midland (Staffordshire) Heavy Battery was a Territorial Force (TF) unit of the Royal Garrison Artillery (RGA) formed in Staffordshire in 1908. It fought on the Western Front during World War I. Converted to medium artillery in the 1920s, the unit took part in the Battle of France and Dunkirk Evacuation in the early part of World War II, before returning to action in North Africa and Italy, and finally in North West Europe.
5.5-inch guns of 240th Battery, 51st Medium Regiment, Royal Artillery, at Ellesmere Port in Cheshire, 7 July 1941 (IWM H11489)