At the Battle of Istabulat, each side suffered approximately 2,000 killed.[1] British casualties in the Sammarrah offensive as a whole were estimated at around 18,000 men, although a further 37,000 men were lost to sickness.[1][2] The Ottoman Empire lost about 15,000 men in the campaign, destroying the Ottoman 6th army.[2] Two Victoria Cross were awarded to John Reginald Graham and Charles Melvin for their actions at Istabulat.[6]