Second Battle of the Piave River

Though the battle proved to be a decisive blow to the Austro-Hungarian Empire and by extension the Central Powers, its full significance was not initially appreciated in Italy.

[6] With the exit of Russia from the war in 1917, Austria-Hungary was now able to devote significant forces to the Italian Front and to receive reinforcements from their German allies.

These, besides accounting for less than a tenth of the Italian forces in theater, had however to be redirected for the major part to the Western Front as soon as the German spring offensive began in March 1918.

Conrad and Boroević had a dislike for each other, and Straußenburg and the emperor, unable to decide between these two strong personalities, divided the army equally between them, reserving only a small part of the forces for a diversionary action on the Giudicarie sector.

The new schemes prepared for the battle led to the abolition of the continuous entrenchment and in the development of a highly mobile defence system, in which even the smaller units were allowed to freely move between previously recognized strongpoints, independently decide to retreat or counterattack, or directly call the support of the artillery.

General Diaz learned the exact timing of the Austro-Hungarian attack: 3:00 a.m. on 15 June, so at 2:30 a.m., the Italian artillery opened fire all along their front on the crowded enemy trenches, inflicting heavy casualties.

To make matters worse, the swollen Piave isolated a great number of units on the west bank of the river, which made them an easy target for the Italian fire.

In the aftermath, Boroević was particularly critical of the behavior of Conrad who, after the complete failure of the first attack, preferred to continue the assaults in the subsequent days but with diminished strength, rather than send reinforcements to the Piave sector.

[8] Lacking supplies and facing attacks by armored units, the Austro-Hungarians were ordered to retreat by Emperor Karl, who had taken personal command, on 20 June.

A clear failure, the operation struck a major blow to the army's morale and cohesion and had political repercussions throughout war-weary Austria-Hungary.

The battle also dealt a severe blow to the German Empire strategy, who considered a separate peace with Italy (and exploiting Italian resources in the affluent Po Valley) as a viable way to concentrate efforts in the western front to finally overcome the Allied forces.

Italian troops awaiting the Austro-Hungarian attack
Italian Marines of the San Marco Brigade landing from barges to take up positions on the Piave Front
Italian troops at the end of the battle