The Battle of Vittorio Veneto was fought from 24 October to 4 November 1918 near Vittorio Veneto on the Italian Front during World War I. After having defeated Austro-Hungarian troops during the Second Battle of the Piave River and recognizing the dire internal situation of Austria-Hungary caused by the course of the war and the blockade of the Adriatic at sea, the Royal Italian Army launched a major offensive: the Italian victory marked the end of the war on the Italian Front and the dissolution of the Austro-Hungarian Empire, contributing to the end of the First World War just one week later. The battle led to the capture of over 5,000 artillery pieces and 448,000 Austro-Hungarian troops, including Germans, Hungarians, Czechs, Slovaks, Slovenes, Croatians, Poles, Romanians, Ukrainians, and also a small number of Austro-Hungarian Italians.
When the battle was fought in November 1918, the nearby city was called simply Vittorio, named in 1866 for Vittorio Emanuele II, monarch from 1861 of the newly created Kingdom of Italy. The engagement, the last major battle in the war (1915–1918) between Italy and Austria-Hungary, was generally referred to as the Battle of Vittorio Veneto, i.e. 'Vittorio in the Veneto region'. The city's name was officially changed to Vittorio Veneto in July 1923, about nine months after Benito Mussolini and his National Fascist Party had ascended to power.
During the Battle of Caporetto, from 24 October to 9 November 1917, the Italian Army suffered over 300,000 casualties (dead, injured and captured) and was forced to withdraw, causing the replacement of the Italian Supreme Commander Luigi Cadorna with General Armando Diaz. Diaz reorganized the troops, blocked the enemy advance by implementing defense in depth and mobile reserves, and stabilized the front line around the Piave River.
In June 1918, a large Austro-Hungarian offensive, aimed at breaking the Piave River defensive line and delivering a decisive blow to the Italian Army, was launched. The Austro-Hungarian Army tried on one side to force the Tonale Pass and enter Lombardy, and on the other side to make two converging thrusts into central Venetia, the first one southeastward from the Trentino, and the second one southwestward across the lower Piave. The whole offensive, which became known as the Battle of the Piave River ended in a heavy defeat for the imperial army, with the Austro-Hungarians losing 11,643 killed, 80,852 wounded and 25,547 captured. On 1 November, the new Hungarian government of Count Mihály Károlyi decided to recall all of the troops who were conscripted from the territory of Kingdom of Hungary, which was a major blow for the Habsburgs' armies.
After the Battle of the Piave, General Armando Diaz abstained from offensive action until Italy would be ready to strike with success assured. In the offensive he planned, three of the five armies lining the front from the Monte Grappa sector to the Adriatic end of the Piave were to drive across the river toward Vittorio Veneto, so as to cut communications between the two Austrian armies opposing them.
Allied forces totaled 57 infantry divisions, including 52 Italian, three British (23rd, 7th and 48th), two French (23rd and 24th), and the 332nd US Infantry Regiment, along with supporting arms. The Austro-Hungarian army had 46 infantry divisions and six cavalry divisions, but both sides were ravaged by influenza and malaria and the Austrians only had 6,030 guns to Allied forces' 7,700.
The Italian armies in the mountains were merely to hold the front line and follow up the enemy when it retreated. The task of opening the attack and taking on the strongest positions fell to the Fourth Army (Lieutenant-General Gaetano Giardino) on the Grappa. The Twelfth Army, consisting of one French and three Italian divisions, was commanded by the English-speaking Lieutenant-General Enrico Caviglia and he had under his command the Tenth Army (Lieutenant-General Lord Cavan) to protect his right flank. Lord Cavan's army consisted of two British and two Italian divisions, and they too were expected to cross the Piave by breaking the Austrian defenses at Papadopoli Island. The Third Army was simply to hold the lower Piave and cross the river when enemy resistance was broken. The Ninth Army, which contained two Italian divisions as well as the 6th Czechoslovak Division (consisting of former POWs captured by the Italians), and the 332nd US Infantry Regiment, was held in reserve. The Allies had 600 aircraft (93 Anglo-French, including four RAF squadrons) to gain complete air superiority in the final offensive.
3rd Italian Army (Duke of Aosta)
10th British-Italian Army (Earl of Cavan)
XI Corps (Italy) of Lt. General Giuseppe Paolini
14th British Corps of General James Melville Babington.
332nd Infantry Regiment (United States) of Col. William Wallace
8th Italian Army (Enrico Caviglia)
The assault corps of General Francesco Saverio Grazioli.
12th Franco-Italian Army (Jean César Graziani)
4th Italian Army (Gaetano Giardino)
6th Italian Army (Luca Montuori)
7th Italian Army (Giulio Cesare Tassoni)