At this period the general situation on the Western Front was as follows: The second battle of Ypres, prepared by the first discharge of asphyxiating gases, had begun on 22nd April, and was to continue with great intensity for over a month.
During the early part of this period the French were preparing an attack to be launched on 9th May between Arras and the right of the British lines. The First British Army, having been ordered to support this operation by an attack, had issued instructions directing the IVth Corps against the German position in the neighbourhood of Richebourg (south-west of Fromelles), and the Ist and Indian Corps against the German trenches between Givenchy and Neuve-Chapelle. These attacks as planned were accordingly delivered on 8th, 9th, and 10th May 1915. They, however, met with little success. It was therefore decided that the First Army should concentrate on the southern point of attack, and renew the operations on 12th May. This attack was subsequently postponed until the 15th owing to low visibility.
In the attack on the 15th the Indian Corps, owing to the strength of the enemy’s defences in the neighbourhood of Richebourg-l’Avoué, again failed to make progress. The 2nd Division of the Ist Corps, however, captured the enemy’s first and support lines. On the following day, the 7th Division on the right of the 2nd Division successfully captured several second lines of enemy trenches, and these two Divisions continued the advance on the day after as far as the La Quinque Rue-Rue de Béthune road.
On 19th May the 2nd Division was relieved on this front by the 51st Division.[1]
On the 25th, the object of these operations having been attained, orders were given for Divisions in the line to act defensively and consolidate the ground won.
These operations were attended by serious casualties, but, to quote Sir John French’s despatch, they assisted in securing the brilliant successes attained by the French forces on the right, not only by holding the enemy on this front, but by drawing off a part of the German reinforcements which were coming up to support their forces east of Arras. In this battle of Festubert the enemy was driven from a strongly-fortified position, and ground was won on a front of four miles to an average depth of 600 yards.
From the above summary it will be seen that the 51st Division was initiated to the ways of war in the midst of a great battle. On 9th May it remained in reserve to the Indian Corps, and was held in readiness to move at short notice until 11th May. By this date it had become clear that the progress of the Indian Corps had not been such as to render the employment of its reserve at all probable.
On 14th May the 51st Division, less two brigades R.F.A. temporarily attached to the Lahore and 49th Division, moved to the area Caestre, Borre, Merris, Meteren, and came into G.H.Q. reserve.[2]