Heavy losses suffered by the British Expeditionary Force on the Western Front following the German spring offensive in March 1918 resulted in a major reorganization of the Egyptian Expeditionary Force: In fact, the 75th Division already had four Indian battalions assigned,[c] so of the 36 battalions needed to reform the divisions, 22 were improvised[16] by taking whole companies from existing units already on active service in Mesopotamia and Palestine to form the 150th Infantry (3 battalions), 151st Sikh Infantry (3), 152nd Punjabis (3), 153rd Punjabis (3), 154th Infantry (3), 155th Pioneers (2), 156th Infantry (1) and the 11th Gurkha Rifles (4).

In the event, just 13 of the battalions were assigned to the divisions[18] and the remaining nine were transferred from Mesopotamia to India in June 1918.

[1] The 1st Battalion was formed in Mesopotamia in May 1918 by the transfer of complete companies from:[2] The battalion was transferred from Mesopotamia to India in June 1918 and joined the Ahmednagar Brigade in the 6th Poona Divisional Area where it remained in until the end of the First World War.

[1] The 2nd Battalion was formed in Mesopotamia in May 1918 by the transfer of complete companies from:[2] The battalion was transferred from Mesopotamia to India in June 1918 and joined the Rawalpindi Additional Brigade in the 2nd (Rawalpindi) Division where it remained in until the end of the First World War.

[1] The 3rd Battalion was formed in Mesopotamia in May 1918 by the transfer of complete companies from:[2] The battalion was transferred from Mesopotamia to India in June 1918 and joined the Ahmednagar Brigade in the 6th Poona Divisional Area where it remained in until the end of the First World War.