June 17--After severe fighting for two days, during which the Germans bring 220,000 men into action and the French fire 300,000 shells, French make important gains near Souchez and at other points in the sector north of Arras; French retain nearly all their gains, despite furious counter-attacks. June 18--A strong and concerted attack is being made by the British and French upon the German front from east of Ypres to south of Arras; British retain a first line of German trenches won east of Ypres. June 19--French carry by assault the position of Fond de Buval, a ravine west of the road between Souchez and Aix-Noulette, where fighting has been in progress since May 9; French advance northwest of the labyrinth; French advance farther on the Fecht River in Alsace, Germans evacuating Metzeral, after setting it on fire. June 20--Germans make a strong attack on the French lines in the Western Argonne, the French stating that it was preceded by a bombardment with asphyxiating projectiles. June 21--French take trenches on the heights of the Meuse; in Lorraine the French advance and take the works to the west of Gondrexon; in Alsace the French are advancing beyond Metzeral in the direction of Meyerhof. June 22--It is officially announced that the French are in possession of the labyrinth, for which furious fighting has been in progress day and night since May 30; the labyrinth consists of a vast network of fortifications built by the Germans between Neuville-St. Vaast and Ecurie, north of Arras, forming a salient of the German line. June 25--On the heights of the Meuse, at the Calonne trench, Germans make a violent night attack, with the aid of asphyxiating bombs and flaming liquids, and penetrate that portion of the former German second line of defense recently taken by the French, but the French retake the ground by a counter-attack. June 26--Germans retake some of their trenches north of Souchez. June 27--Violent artillery fighting occurs in Belgium and north of Arras. June 28--Severe artillery duels are fought along the front from the Aisne to Flanders. June 29--Heavy cannonading is in progress north of Arras, particularly near Souchez. June 30--Artillery actions are fought north of Arras and on the banks of the Yser; in the Argonne the Germans gain a foothold at some points of the French line near Bagatelle. July 1--North of Arras and along the Aisne heavy artillery engagements are being fought. July 2--In the western part of the Argonne a German army under the Crown Prince takes the offensive, and northwest of Le Four-de-Paris German troops advance from one-eighth to one-fifth of a mile on a three-mile front, taking war material and prisoners. July 3--German artillery carries on severe bombardments along practically the whole front; French repulse two German attacks in the region of Metzeral. July 4--Spirited artillery actions are fought in the region of Nieuport and on the Steenstraete-Het Sase front.