For this campaign, Robertson was made a Commander of the Order of the British Empire (CBE), but later that month he was hospitalised for varicose veins in the leg he had broken in 1917. He was replaced as commander of the 19th Infantry Brigade by Alan Vasey. When Robertson recovered he was given responsibility for the training of AIF reinforcements in the Middle East. Robertson's service in the field and his long experience in training troops made him an ideal candidate for the post. For his services, Robertson was mentioned in despatches a third time.