38th Brigade (United Kingdom)
|38th Infantry Brigade|
|Active||August 1914–March 1919|
|Part of||13th (Western) Division|
38th Brigade was organised as part of 13th (Western) Division, which came into existence as a result of Army Order No 324 of 21 August 1914 authorising the formation of six new volunteer infantry divisions (the 'First Kitchener Army' or 'K1'). The division was organised by Western Command and the brigades began to assemble on Salisbury Plain.
The following units comprised the brigade:
- 6th (Service) Battalion The King's Own
- 6th (Service) Battalion East Lancashire Regiment
- 6th (Service) Battalion South Lancashire Regiment
- 6th (Service) Battalion The Loyal North Lancashire Regiment
- 38th Machine Gun Company (joined 24 October 1916)
- 38th Supply and Transport Column Army Service Corps (January 1917–August 1918)
- 38th Trench Mortar Battery ('G' Battery joined from 39th Brigade October 1917, renamed 38th Battery February 1918)
- 38th Small Arms Ammunition Section Army Service Corps (joined March 1918)
The brigade sailed from Avonmouth in June 1915 and landed on the Gallipoli Peninsula in July. It was evacuated to Egypt in December 1915. In February 1916 it moved to Mesopotamia and fought in that thetare until the end of the war. It was disbanded in 1919. 
- See main article: British 38th (Irish) Infantry Brigade
In January 1942 38th Brigade was reformed by converting 210th Independent Infantry Brigade (Home) into a frontline formation. It was composed of Irish battalions and was titled 38th (Irish) Brigade. It fought with distinction through the Tunisian and Italian campaigns of World War II.
38 (Irish) Brigade was reformed yet again in 2007 as a component of the present-day British Army.
- Joslen, p. 373.
- Lt-Col H.F. Joslen, Orders of Battle, United Kingdom and Colonial Formations and Units in the Second World War, 1939–1945, London: HM Stationery Office, 1960/Uckfield: Naval & Military, 2003, ISBN 1843424746.