The brigade served as part of the Western Frontier Force and the Suez Canal Defences.

[1] The Eastern Mounted Brigade had served dismounted in the Gallipoli Campaign from 8 October to 19 December 1915 attached to the 54th (East Anglian) Division.

[2] Similarly, the South Eastern Mounted Brigade served in Gallipoli from 8 October to 30 December 1915 attached to the 42nd (East Lancashire) Division.

[3] Both brigades were withdrawn to Egypt in December 1915 and formed part of the Suez Canal Defences.

[5] The brigade was with the Suez Canal Defences when, on 14 January 1917, Egyptian Expeditionary Force (EEF) Order No.

Here the dismounted Yeomanry underwent training for service on the Western Front, particularly gas defence.

[7] Due to a lack of replacements, British[h] infantry divisions on the Western Front had been reduced from 12 to 9 battalions in January and February 1918.

[7] With the end of the war, the troops of 74th Division were engaged in railway repair work and education was undertaken while demobilisation began.