May 22—British repulse attacks north of La Bassée; French make gains north of Arras; Germans repulse British and French attacks southwest of Neuve Chapelle; German official report states that the Allies, southwest of Lille and in the Argonne, are using mines charged with poisonous gases.
May 23—British advance east of Festubert; French gain ground northeast of Notre Dame de Lorette and near Neuville-St. Vaast; Germans are repulsed east of the Yser Canal.
May 24—Before attacking the British northeast of Ypres, the Germans roll a huge cloud of asphyxiating gas toward them, the volume of fumes being forty feet high along a six-mile front; because of the use of respirators, few British succumb; fighting in progress north of Arras.
May 26—British make further gains in their offensive against La Bassée, and it is officially announced that the net result of their operations in the territory to the west of that town since May 1 is the capture of a total front of more than three miles, along a considerable part of which two lines of German trenches have been taken; in the district north of Arras there is desperate fighting near Angres, the Germans attempting to regain ground lost yesterday.
May 27—French make further gains north of Arras; artillery engagements along the Yser Canal; Belgians repulse two German infantry attacks near Dixmude; artillery duels in the Vosges; French fail in attempt to break German lines between Vermelles and Lorette Hills.
May 28—British make further gains toward La Bassée; fierce fighting occurs north of Arras; French advance in Alsace on the mountain of Schepfenrieth; Germans repulse French attacks southeast of Lorette Ridge.
May 29—The village of Ablain-St. Nazaire, for which fighting has been in progress for three weeks, is now in the hands of the French, the Germans evacuating their last position this morning.
May 30—French gain ground at four points—near Neuville-St. Vaast, on the Yser, at Le Prêtre Forest, and in Alsace at Schnepfenriethkopf; British make small gains at Festubert; Belgian and German artillery are fighting a duel north and south of Dixmude.
May 31—Severe fighting continues in the region north of Arras, Germans acting, for the most part, on the defensive; French gain ground on the road from Souchez to Carency; artillery fighting at the Forest of La Prêtre.
June 1—French gain more ground at Souchez, where violent fighting is in progress, and also gain southeast of Neuville; French lose trenches on the outskirts of Le Prêtre Forest.