Royal Tank Regiment - World War I

World War I

The formation of the Royal Tank Regiment followed the invention of the tank. Tanks were first used at the battle of Flers-Courcelette in September 1916 during the Battle of the Somme in World War I. At that time, the six tank companies were grouped as the Heavy Branch of the Machine Gun Corps (MGC).

In November 1916 the eight companies then in existence were each expanded to form battalions (still identified by the letters A to H); another seven battalions, I to O, were formed by January 1918, when all the battalion were changed to numbered units. On 28 July 1917 the Heavy Branch was separated from the rest of the Corps by Royal Warrant and given official status as the Tank Corps. The formation of new battalions continued and, by December 1918, 26 had been created though there were only 25 battalions equipped with tanks, as the 17th had converted to armoured cars in April 1918. The first commander of the Tank Corps was Hugh Elles.

The Corps saw heavy action through 1917 and 1918, with special note being given to the [[Battle of Cambrai (1917)|1917 Battle of Cambrai, which the regiment continues to commemorate annually. During the war, four members of the Corps were awarded the Victoria Cross. However, heavy losses and recurrent mechanical difficulties reduced the effectiveness of the Corps, leading the Bovington Tank School to adopt a doctrine that emphasised caution and high standards of maintenance in equal measure.