The 57th (2nd West Lancashire) Division was an infantry formation of the Territorial Force created in 1914 as part of the massive expansion of the British Army during the First World War.

[1][2] The formations and units of 57th Division concentrated around Canterbury in early 1915 as part of Second Army, Central Force.

In July 1916, 57th Division was transferred to the Emergency Reserves in the Aldershot area where it continued training.

[1][2] On 5 January 1917 the division was ready for overseas service, and between 7 and 22 February its units and formations crossed to France and disembarked at Le Havre.

These units had a full complement of personnel, but 80 per cent of them were below Medical Category 'A' and they were armed only with personal weapons and a skeleton allotment of transport.

[7] The 42nd Brigade HQ was disbanded in North Africa on 29 July 1944, and '57th Division' ceased to exist on the same date.