List of battalions of the Durham Light Infantry

Victoria crown cap badge of the Durham Light Infantry (1881—1902)

When the 68th Regiment of Foot and the 106th Regiment of Foot became the Durham Light Infantry (DLI) in 1881 under the Cardwell-Childers reforms of the British Armed Forces, seven pre-existing militia and volunteer battalions of County Durham were integrated into the structure of the DLI. These latter battalions had existed intermittently for some time, but had been made permanent in reaction to a perceived threat of invasion by France the late 1850s.[1][2][3] The militia, in two battalions, were more appealing to the working classes as the equipment was government funded, while the volunteers were organised as "rifle volunteer corps", independent of the British Army, financially self-supporting and composed primarily of the middle class, they underwent a number of reorganisations before reaching the form in which they were incorporated into the county regiment.[4][5][6]

In December 1887 the Durham Rifle Volunteer Battalions were renamed as Volunteer Battalions of the Durham Light Infantry retaining their Administrative battalion numbers.[20] The 3rd Corps sub-title was granted in 1867, with the slight change officially registered in 1887.[21]

The Territorial Force (renamed the Territorial Army in 1920) was formed in 1908, from the volunteer infantry battalions of the county regiments, and other volunteer arms. The militia battalions transferred to the "Reserve" or the "Special Reserve". The 3rd and 4th battalions exchanged numbers that year, and were recast as the 3rd (Reserve) and 4th (Extra Reserve) battalions in a draft finding role.[22] The reason for this apparently pointless exchange of numbers was that in the event of a mobilisation the War Office intended to use the 3rd battalion of a regiment to provide reinforcements for the regular battalions, while if a regiment had a 4th battalion it would be mobilised as a whole unit. The older unit (1st Durham Fusiliers, then the 3rd battalion) wished to remain as a fighting unit, and so exchanged numbers.[23] All volunteer battalions were renumbered to create a single numerical sequence.[24]

Brass shoulder title as used by regulars and service battalions in the First World War

The Durham Light Infantry would send 22 battalions overseas and lose 12006 other ranks during the course of the war.[25] The regiment's territorial components formed duplicate second and third line battalions of progressively lower fitness men.[26] Many new battalions, technically of the Regular Army, were formed as part of Secretary of State for War Lord Kitchener's appeal for an initial 100,000 men volunteers in August 1914, referred to as the New Army or Kitchener's Army. The 18th and 20th Service battalions, were referred to as "Pals" because they were predominantly composed of work colleagues, the 19th battalion was originally a Bantam battalion.[27]

King's Crown cap badge with the 'South Africa 1900-02' battle-honour, worn by Durham Light Infantry territorial battalions from 1909 to 1953

By Late 1920, all of the regiment's war-raised battalions had disbanded, with many of their Colours laid up in Durham Cathedral.[46] Territorial Force battalions were reformed in 1921, renamed the Territorial Army later in the year.[47]

Second World War King's crown cap badge, worn by all battalions of the Durham Light Infantry (plastic, economy version 1942–1945)

Second World War shoulder title of the Durham Light Infantry (printed, economy version)

The regiment's expansion during the Second World War was modest compared to 1914–18. Existing territorial battalions formed duplicates as in WWI (using whole rather than fractional numbers), while National Defence Companies were used to create a new "Home Defence" battalion. Hostilities-only battalions were raised after the evacuation of Dunkirk.[58] In addition to this, 26 battalions of the Home Guard were affiliated to the regiment, wearing its cap badge,[59] and also by 1944 one Heavy Anti Aircraft (HAA) battery, and four rocket batteries (Z Battery).[60] Due to the daytime (or shift working) occupations of these men, the batteries required eight times the manpower of an equivalent regular battery.[61] A number of Light Anti-Aircraft (LAA) troops were formed from the local battalions to defend specific points, such as factories.[62]

Queens crown cap badge of the Durham Light Infantry (1953—1968)

In the immediate post-war period, the army was significantly reduced with all regiments being reduced to one battalion. The D.L.I. was one of only seven regiments to re-raise its second battalion in the early 1950s.[95][note 1] After a long period of suspended animation the Militia battalions were finally disbanded in 1953.

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