I HAVE the honor to report that since the date of my last dispatch (April 5, 1915) the Army in France under my command has been heavily engaged opposite both flanks of the line held by the British Forces.
1. In the North the town and district of Ypres has once more in this campaign been successfully defended against vigorous and sustained attacks made by large forces of the enemy and supported by a mass of heavy and field artillery, which, not only in number, but also in weight and caliber, is superior to any concentration of guns which has previously assailed that part of the line.
In the South a vigorous offensive has again been taken by troops of the First Army, in the course of which a large area of entrenched and fortified ground has been captured from the enemy, whilst valuable support has been afforded to the attack which our Allies have carried on with such marked success against the enemy's positions to the east of Arras and Lens.
2. I much regret that during the period under report the fighting has been characterized on the enemy's side by a cynical and barbarous disregard of the well-known usages of civilized war and a flagrant defiance of The Hague Convention.[2]
All the scientific resources of Germany have apparently been brought into play to produce a gas of so virulent and poisonous a nature that any human being brought into contact with it is first paralyzed and then meets with a lingering and agonizing death.
The enemy has invariably preceded, prepared and supported his attacks by a discharge in stupendous volume of these poisonous gas fumes whenever the wind was favorable.
Such weather conditions have only prevailed to any extent in the neighborhood of Ypres, and there can be no doubt that the effect of these poisonous fumes materially influenced the operations in that theater, until experience suggested effective counter-measures, which have since been so perfected as to render them innocuous.
The brain power and thought which has evidently been at work before this unworthy method of making war reached the pitch of efficiency which has been demonstrated in its practice shows that the Germans must have harbored these designs for a long time.
As a soldier I cannot help expressing the deepest regret and some surprise that an Army which hitherto has claimed to be the chief exponent of the chivalry of war should have stooped to employ such devices against brave and gallant foes.