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21st Division
British 21st Division insignia.png
Active World War I
1914 - May 1919
Country United Kingdom
Branch New Army
Type Infantry
Engagements Battle of Loos
Battle of the Somme
Battle of Arras
Battle of Passchendaele
Battle of Cambrai

The British 21st Division was a New Army division raised in September 1914. The division moved to France in September 1915 and served on the Western Front for the duration of the First World War.

The division's insignia was the "triple-seven".

Unit history[edit | edit source]

The Division was the first of the six created for the Third New Army on 13 September 1914. The division suffered 55,581 killed, wounded and missing, being the highest number of casualties suffered by any New Army division.[1] The Division ceased to exist on 19 May 1919.

Formation[edit | edit source]

62nd Brigade
63rd Brigade

In July 1916 the brigade moved to the 37th Division, swapping with the 110th Brigade.

64th Brigade
  • 9th (Service) Battalion, King's Own Yorkshire Light Infantry
  • 10th (Service) Battalion, King's Own Yorkshire Light Infantry (disbanded February 1918)
  • 14th (Service) Battalion, Durham Light Infantry (until November 1915)
  • 15th (Service) Battalion, Durham Light Infantry
  • 1st Battalion, The East Yorkshire Regiment (from November 1915)
110th Brigade

In July 1916 the brigade joined from the 37th Division, swapping with the 63rd Brigade.

  • 14th (Service) Battalion, Northumberland Fusiliers

Battles[edit | edit source]

The division took part in the Battle of Loos, Battle of the Somme, Battle of Arras, Battle of Passchendaele and Battle of Cambrai.[1]

See also[edit | edit source]

References[edit | edit source]

External links[edit | edit source]

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