On the Julian front the Austrian artillery showed increased activity. In the area east of Goritz on the night of February 10, 1917, after heavy artillery and trench mortar preparations, the Austrians in considerable forces attacked the Italian positions on the western slopes of Santa Caterina, northwest of San Marco, and east of Vertoibizza, between Sober and the Goritz-Dornberg railway.

During the last few days of February, 1917, the weather cleared up somewhat and brought increased artillery activities. The artillery duel was more intense in the zone east of Goritz. Some shells fell on the town. At the confluence of the Vertoibizza and Frigido the Italians repulsed Austrian detachments that were attempting to approach their lines.

In the zone east of Goritz Austrian counterattacks, directed particularly against the summit of Height 174 and to the east of the Vertoibizza Torrent, broke down under Italian fire. Afterward Italian infantry, assuming a counteroffensive, occupied the important height to the south of Grazigna after a desperate conflict.

During the next few days the advance was pushed across the Doberdo plateau, south of Gorizia, and beyond the Vallone on to the western end of the forbidding and formidable Carso. By the 15th the Italian line ran from Tivoli, north-east of Gorizia, down the river Vertoibizza, across the Vippacco and along the Carso east of Nad Logem, Opacchiasella, and Villanova.

On February 20, 1917, the Austrians attempted attacks on the left bank of the Maso Torreni and east of the Vertoibizza Torrent in the Frigido Valley. There were desultory artillery actions. They became especially intense in the south Loppio Valley in the upper Vanol, and on the Carso.

Toward noon Italian infantry made several raids on various points along the front, which led to considerable progress in the Plava area, on the slopes of Monte Cucco, and on the hills east of Goritz and Vertoibizza. At the same time other Italian troops made a thrust in the northern sector of the Carso and reached the wrecked Austrian lines east of Dosso Faiti, capturing prisoners.

During the night the Italians exploded a countermine, which destroyed the Austrian gallery. The edge of the crater was occupied by Italian troops and the position established. On the Julian front artillery duels were reported in the Plava area, to the east of the Vertoibizza Torrent and in the northern sector of the Carso.