The 7th Glosters were part of 39th Infantry Brigade (commanded by Brigadier-General T.A. Andrus) along with the 9th Royal Warwickshire Regt., 9th Worcestershire Regt., 7th North Staffordshire Regt., and No.39 Machine Gun Company. The 39th Brigade was part of 13th Division, IIIrd Indian Army Corps.
The 7th Bn. had been in 'quarantine' in Basra, but on the night of the 17th April 1916 they rejoined 39th Brigade near Sannaiyat. At 7.10am on the night of the 20th April, the 39th Division launched an attack on the Turkish line near a canal. However, the Turks had flooded the area in front of their line and the attack was bogged down and had to withdraw. Fighting continued over the next few days, but little headway was made. Kut could not be relieved.
1st February 1917 the 7th Bn. were near Hai. The Turks were being cut off in the Dahra bend of the River Tigris. 11th February one company of the 7th Glosters was ordered to attack a Turkish position near a water channel. As they advanced a heavy dust-storm came on and prevented any artillery or machine gun support. The company became lost in the storm and faced heavy fire from the Turkish lines. About 50 yards from the Turkish lines, they were forced to dig in and await the nightfall, when they could withdraw. They had lost 119 casualties.
By the end of February 1917 the Anglo-Indian Forces had crossed the Tigris and were in persuit of the retreating Turkish army. On 25th February the 39th Brigade advanced and took 3 Turkish lines and repulsed a strong counter-attack.
On March 29th the 39th Brigade too part in the attack on the Turkish positions at the village of Duqma, which was taken.
In April 1918, the 13th Division was advancing into Southern Kurdistan. The 7th Glosters were part of Column B2, which moved to Narin Kopri and then onto positions near Umr Maidan on the 27th April. By the 29th April they were 10 miles south of Kulawand. The 7th Glosters were then transferred to Column B1.
By 25th August the 7th Glosters were at Hamadan. On the 31st half the battalion was ordered to move to Bijar. By September 17th the Glosters were on the Bijar line, minus 1 company which was on the Zenjan line.
On the 31st October 1918, the Turks signed an Armsitice and surrendered.