March 31—Germans lose ground near Feuchy; British advance near Serre; French recapture Ayencourt and Monchel and gain considerable ground near Orvillers; American Army starts for the battlefront; Paris again bombarded; one person killed, six injured.
April 1—French repulse German attacks against Grivesnes; Germans mass troops near Albert for renewed drive; bombardment of Paris resumed.
April 2—British carry on successful minor operations between the Avre and the Luce Rivers and in the neighborhood of Hébuterne; French repulse Germans southwest of La Fère and shell enemy concentrations east of Cantigny.
April 3—British occupy Ayette, check Germans near Moreuil; French extend their lines north of Plémont and take over another sector of the line, extending their holdings northward to Thennes; Americans heavily gassed in a sector other than Toul.
April 4—Germans deliver terrific attack against the French along a front of nearly nine miles, from Grivesnes to north of the Amiens-Royes road, and occupy the villages of Mailly-Raineval and Morisel; British lose ground north of Hamel and in the direction of Vaire Wood.
April 5—French forces, by vigorous counterattacks, improve their positions in the region of Mailly-Raineval and Cantigny; Germans attack British lines from the Somme northward to a point above Bucquoy and reach the Albert-Amiens railway, but are driven back.
April 6—Germans attack at several points along the French front from the region of Montdidier eastward to the east and south of Chauny, but are repulsed everywhere except on the left bank of the Oise in the Chauny sector.
April 7—Germans push on south of the Oise and take Coucy Wood and Pierremande and Folembray; British retake Aveluy Wood and repel attacks opposite Albert and south of Hébuterne.
April 8—British lines around Bucquoy heavily shelled; Germans drive French back to the western bank of the Ailette River and take Verneuil and the heights east of Coucy-le-Château; Americans rout German patrol northwest of Toul; French airmen locate and bombard the gun that fired on Paris.
April 9—Germans force back the British-Portuguese centre on the River Lys between Estaires and Bac St. Maur, and take Richeboucq-St. Vaast and Laventie; British repulse attacks at Givenchy and Fleurbaix.