During theFirst World War theBritish Armed Forces was enlarged to many times its peacetime strength. This was done mainly by adding newbattalions to existingregiments (theKing's Royal Rifles raised a total of 26 battalions). Although sometimes identified by shoulder titles, generally the new battalions could not be identified from appearance. Consequently, the units in this list have been assembled considering only those as having a uniquely differentcap badge.
Although men of theRoyal Navy served on land in many areas throughout the world, the units listed below served as an infantry division in Gallipoli, Belgium and France (the63rd (Royal Naval) Division).
The cavalry consisted of Guards (Household Cavalry),Dragoon Guards,Dragoons,Hussars andLancers. The volunteer cavalry was the Yeomanry.
Most regiments had two regular battalions, supported by associated battalions from theTerritorial Force ('part-time' soldiers) and Reserve Battalions. After the start of the war, many new battalions were raised and called "Service Battalions". Service battalions raised from a single locale were often called "Pals battalions".
Infantry regiments of just Territorial Force battalions (i.e. no regular or Special Reserve battalions).
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