Entrenching battalions were temporary units formed in the armies of the British Empire during the First World War. Entrenching Battalions were trained as infantry, but were primarily utilized for manual labour duties such as trench repair, wire laying, road making and assisting tunnellers, pioneers, engineers and signals. The Battalions were also used as pools of men from which drafts of replacements could be drawn by conventional infantry battalions.[1][2][3][4][5]
Formed in 1916 and provided a reinforcement pool to I ANZAC Corps. After the heavy casualties suffered during the Battle of Pozières between July and September 1916 the battalions remaining manpower was absorbed by the Australian Infantry battalions. The 1st Anzac Entrenching Battalion later absorbed the surplus reinforcements for the Australian tunnelling companies and worked with the Canadian tunnellers at Ypres. The battalion was disbanded in late 1917.[1]
British Battalions
Entrenching battalions were first formed in the British Army in July 1916 and were allocated at Corps level. The practice ceased on the Western Front by autumn 1917, due to manpower shortages, but saw a revival at the start of 1918. The reduction in the number of battalions in an infantry brigade (from four to three) resulted in many (under-manned) infantry battalions being disbanded. Following the disbandment of these infantry battalions in February 1918, the pool of men was used to bring the remaining battalions up to strength, and to allocate any remaining manpower surplus to 25 entrenching battalions. These battalions were put to use in improving the existing defences in anticipation of a German offensive, and could be used as a reserve force if needed.[2][5]
The entrenching battalions were disbanded in April 1918, with their troops apportioned to infantry battalions to make good the losses suffered following Operation Michael, which began the German spring offensive of 1918. Many of their war diaries[6] from 1918 have survived and can be consulted at the National Archives at Kew though the 1918 war diaries for the 1st, 6th, 7th, 10th, 13th, 15th and 17th Entrenching Battalions have not survived.
The following entrenching battalions were formed:[7]
1st Entrenching Battalion
The Battalion appears to have been stationed in Salonika in 1918.
2nd Entrenching Battalion
The Battalion appears to have been stationed in Salonika in 1918. The unit was commanded by Hubert Carr-Gomm.
Formed from the disbanded 8th Battalion East Yorkshire Regiment and 12th Battalion West Yorkshire Regiment. Disbanded on 5 April 1918.[19] These men subsequently joined the 7th Battalion East Yorkshire Regiment and 10th Battalion West Yorkshire Regiment.
Formed from the 2/1st Buckinghamshire Battalion,[45] the 2/7th and 2/8th (T.F.) Battalions Royal Warwickshire Regiment.[43][17] These men subsequently joined the 2/4th Oxfordshire & Buckinghamshire Light Infantry when the battalion was disbanded in April 1918.[17]
Canadian Battalions
The Canadian Expeditionary Force formed four entrenching battalions in July 1916, one for each of the respective divisions. They were disbanded in September 1917 with the creation of the Canadian Corps Reinforcement Camp.[3]
The New Zealand Expeditionary Force formed the New Zealand Entrenching Group in February 1918. It consisted of three entrenching battalions with the manpower drawn from men of the disbanded 4th New Zealand Infantry Brigade. Each of the Battalions was attached to one of the remaining three New Zealand Infantry brigades. The Entrenching Battalions were disbanded in October 1918.[4]
J.B.M. Frederick, Lineage Book of British Land Forces 1660–1978, Vol I, Wakefield: Microform Academic, 1984, ISBN 1-85117-007-3.
Brig E.A. James, British Regiments 1914–18, London: Samson Books, 1978, ISBN 0-906304-03-2/Uckfield: Naval & Military Press, 2001, ISBN 978-1-84342-197-9.
Everard Wyrall, The Die-Hards in the Great War, Vol II, 1916–1919, London: Harrisons, 1930/Uckfield: Naval & Military Press, 2002, ISBN 978-1-84734-575-2.