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.
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 disliked 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.
Conrad, who had been demoted from commander-in-chief after a series of disastrous failures in the Balkans and on the Eastern Front, continued in Italy the same patterns of poor planning—disregarding troop strength, terrain and weather conditions.
Straussenburg and other commanders in Vienna, dealing with the consequences of nearly a million casualties from Conrad's earlier campaigns, denied his requests until early June.
[9] 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.
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.
I could no longer hope that relief on the Western Front might be secured in Italy itself.Conrad was dismissed from military service entirely on 15 July, as a result of the battle.