[3] Now part of the Territorial Force, the London Regiment expanded to 88 battalions in the First World War.

Initially these were formed from men who had not volunteered for overseas service, and the recruits who were flooding in.

[5][3] In June 1915, men of Territorial Force units who had only volunteered for Home service were formed into composite Provisional Battalions for coast defence.

In 1916 the Military Service Act swept away the Home/Overseas service distinction and the provisional battalions took on the dual role of home defence and physical conditioning to render men fit for drafting overseas.

[6][7][8] The London Regiment was reformed in the Territorial Army in the 1920s and its individual battalions were granted battle honours in 1924.