During the Second World War the D.L.I. raised 15 battalions, two Regular, six 1st and 2nd line Territorial (one renamed and transferred to another regiment), and the remainder war formed (mostly so called 'Dunkirk' battalions), with 10 seeing active service overseas in France, Burma, North Africa, Italy, and France and Germany. The low number of battalions raised compared to the First World War was due to the increasing specialisation of a more mechanised army and its associated support requirements. Additionally, twenty six battalions of the Home Guard wore the D.L.I. cap badge.