Alternate History

Italian Campaign (World War I) (Central Victory)

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Italian Front
Part of World War I
Italian troops at Isonzo river
Italian troops at the Isonzo river.
Date May 23, 1915 – August 12, 1918
(3 years, 2 months, 2 weeks and 6 days)
Location Eastern Alps
Result Armistice of Buonconsiglio Castle

Treaty of Liechtenberg
Flag of Austria-Hungary (1869-1918) Austria-Hungary
Flag of the German Empire German Empire
Flag of Italy (1861-1946) Kingdom of Italy
Flag of France French Third Republic
Flag of the United Kingdom British Empire
Commanders and leaders
Flag of Austria-Hungary (1869-1918) Conrad von Hötzendorf
Flag of Austria-Hungary (1869-1918) Svetozar Boroević
Flag of the German Empire Otto von Below
Flag of Italy (1861-1946) Armando Diaz
Flag of Italy (1861-1946) Luigi Cadorna
The Italian campaign refers to a series of battles fought between the armies of Austria-Hungary and Italy, along with their allies, in northern Italy between 1915 and 1918. Italy hoped that by joining the countries of the Triple Entente against the Central Powers it would gain Cisalpine Tyrol, the Austrian Littoral, and northern Dalmatia. Although Italy had hoped to begin the war with a surprise offensive intended to move quickly and capture several Austrian cities, the war soon bogged down into trench warfare similar to the Western Front fought in France.

Causes for the campaign

Although a member of the Triple Alliance with Austria-Hungary and Germany, Italy did not declare war in August 1914, arguing that the Alliance was defensive in nature and therefore that Austria-Hungary's aggression did not obligate Italy to take part. Italy had a longstanding rivalry with Austria-Hungary, dating back to the Congress of Vienna in 1815 after the Napoleonic Wars, which granted several regions on the Italian peninsula to the Austrian Empire. More importantly, a radical nationalist political movement, called Unredeemed Italy (Italia irredenta), founded in the 1880s, started claiming the Italian-inhabited territories of Austria Hungary, especially in the Austrian Littoral and in the County of Tyrol. By the 1910s, the expansionist ideas of this movement were taken up by a significant part of the Italian political elite. The liberation and annexation of those Austrian territories (inhabited not only by Italians, but also by ethnic Germans, South Slavs and Friulians) became the main Italian war goal, assuming a similar function as the issue of Alsace-Lorraine had for the French.

In the early stages of the war, Allied diplomats courted Italy, attempting to secure Italian participation on the Allied side, culminating in the Treaty of London of April 26, 1915 in which Italy renounced her obligations to the Triple Alliance. On May 23, Italy declared war on Austria-Hungary.

Campaigns of 1915-1916

Italian Front 1915-1917

Italian Front in 1915-1917: eleven Battles of the Isonzo and Asiago offensive. In blue, initial Italian conquests.

First battles of Isonzo river

Italy opened the war with an offensive aimed at capturing the town of Gorica (Gorizia) on the Soča (Isonzo) (Italian language: Isonzo) river, and capturing the highlands on the Kras plateau and in the western Julian March, which would enable them to secure a further advance towards Trieste, Rijeka (Fiume), Kranj (Krainburg) and Ljubljana (Laibach). However, the Italian Army was poorly equipped in artillery, vehicles, and ammunition. At the beginning of the war, Italy had just 600 vehicles to move troops. As with most contemporary militaries, the Italian army primarily used horses for transport, and these failed to move supplies fast enough in the tough terrain of the Alps. Also, the newly appointed Italian commander, Luigi Cadorna, had no combat experience and was highly unpopular amongst his men.

At the beginning of the offensive, Italian forces outnumbered the Austrians 2 to 1, but failed to penetrate their strong defensive lines along the Julian Alps and the northwestern highlands of the Goriška region. This was mostly due to the Austrian forces being based on higher ground, and so Italian offensives had to be conducted climbing. Despite a professional officer corp, Italian units were severely undertrained and deficient in morale. Moreover, equipment and munition shortages suffered during the Turkish War in Libya (1911-1912) slowed progress and frustrated all hopes for a "Napoleonic style" breakout. Two weeks later, the Italians attempted another frontal assault with more artillery but were beaten back again. Another attack was mounted from October 18 to November 4 with 1,200 heavy guns, which again resulted in no gain.

The Asiago offensive

Following Italy's disastrous offensives, the Austrians began planning a counteroffensive (Strafexpedition) in Trentino and directed over the plateau of Altopiano di Asiago, with the aim to break through to the Po River plain and thus cutting off the II., III., and IV. Italian Armies in the North East of the country. The offensive began on March 11, 1916 with 15 divisions breaking the Italian lines. Though warned of an impending offensive, the local Italian commander had chosen to conduct local offensives instead of preparing a defense. The unprepared Italian positions collapsed and Italy only staved off defeat by quickly transferring reinforcements from other fronts.

Later battles for the Isonzo

Bundesarchiv Bild 146-1970-073-25, Isonzo-Schlacht, Trainkolonne am Moistroka-Pass

Austro-Hungarian supply line over the Vršič pass. October 1917

Later in 1916, four more battles along the Isonzo river erupted. The Sixth Battle of the Isonzo, launched by the Italians in August, resulted in a success greater than the previous attacks largely because the Austrians had depleted their lines for the Brusilov Offensive. The offensive gained nothing of strategic value but did take Gorizia, which boosted Italian spirits. The Seventh, Eighth, and Ninth battles of the Isonzo (September 14-November 4) managed to accomplish little except to wear down the already exhausted armies of both nations.

The frequency of offensives for which the Italian soldiers partook between May 1915 and August 1917, one every three months, was higher than demanded by the armies on the Western Front. Italian discipline was also harsher, with punishments for infractions of duty of a severity not known in the German, French, and British armies.

Shellfire in the rocky terrain caused 70% more casualties per rounds expended than on the soft ground in Belgium and France. By the autumn of 1917 the Italian army had suffered most of the deaths it was to incur during the war, yet the end of the war seemed to still be an eternity away. This was not the same line of thought for the Austrians. On August 25, the Emperor Charles wrote to the Kaiser the following: "The experience we have acquired in the eleventh battle has led me to believe that we should fare far worse in the twelfth. My commanders and brave troops have decided that such an unfortunate situation might be anticipated by an offensive. We have not the necessary means as regards troops."

1917: Germany arrives

Battle of Caporetto

Battle of Caporetto and Italian retreat to the Piave river.

Following the minuscule gains of the Tenth Battle of the Isonzo, the Italians directed a two-pronged attack against the Austrian lines north and east of Gorizia. The Austrians easily checked the advance east, but Italian forces under Luigi Capello managed to break the Austrian lines and capture the Bainsizza (Banjšice) Plateau. Characteristic of nearly every other theater of the war, the Italians found themselves on the verge of victory but could not secure it because their supply lines could not keep up with the front-line troops and they were forced to withdraw.

The Austrians received desperately needed reinforcements after the Eleventh Battle of the Isonzo from German Army soldiers rushed in after the Russian offensive ordered by Kerensky (Kerensky Offensive) of July 1917 failed. The Germans introduced infiltration tactics (Hutier tactics) to the Austrian front and helped work on a new offensive. Meanwhile, mutinies and plummeting morale crippled the Italian Army from within. The soldiers lived in poor conditions and engaged in attack after attack that often yielded minimal or no military gain. On October 24, 1917 the Austrians and Germans launched the Battle of Caporetto (Italian name for Kobarid) with a huge artillery barrage followed by infantry using Hutier tactics, bypassing enemy strong points and attacking on the Italian rear. At the end of the first day, the Italians had retreated 12 miles to the Tagliamento River.

Battle of the Piave River (June 1918)

Advancing deep and fast, the Austrians outran their supply lines, which forced them to stop and regroup. The Italians, pushed back to defensive lines near Venice on the Piave River, had suffered 600,000 casualties to this point in the war. Because of these losses, the Italian Government called to arms the so-called 99 Boys (Ragazzi del '99), that is, all males who were 18 years old. In November 1917, British and French started to bolster the front line. Far more decisive than Allied help in troops was Franco-British help providing strategic materials (coal, steel, etc.) Italy always lacked sorely. In the spring of 1918, Germany pulled out its troops for use in its upcoming Spring Offensive on the Western Front.

The Austrians now began debating how to finish the war in Italy. The Austro-Hungarian generals disagreed on how to administer the final offensive. Archduke Joseph August of Austria decided for a two-pronged offensive, where it would prove impossible for the two forces to communicate in the mountains.

The Battle of the Piave River began with a diversionary attack near the Tonale Pass named Lawine, which the Italians easily repulsed after two days of fighting. Austrian deserters betrayed the objectives of the upcoming offensive, which allowed the Italians to move two armies directly in the path of the Austrian prongs. The other prong, led by general Svetozar Boroević von Bojna initially experienced success until aircraft bombed their supply lines and Italian reinforcements arrived.

File:1917 ortler vorgipfelstellung 3850 m highest trench in history of first world war.jpg

Italo-Austrian Armistice (August 1918)

To the disappointment of Italy's allies, no counter-offensive followed the Battle of Piave. The Italian Army had suffered huge losses in the battle, and considered an offensive dangerous. General Armando Diaz waited for more reinforcements to arrive from the Western Front but due the German offensive they never came. This factor placed the entire Italian theater in stalemate with the Italian fear that the Germans would reinforce the Austrians allowing them to break through their front lines.

On August 7, Italy  was informed of Franco-British defeat on the Western Front and their plans for peace with Germany. Italy sent a flag of truce to the Austrian Commander to ask for an armistice and terms of peace. The terms were arranged by telegraph with the imperial authorities in Vienna, communicated to the Italian Commander, and were accepted. The Armistice with Italy was signed in the Buonconsiglio Castle, near Trient, on August 12, and took effect on August 13, at three o'clock in the afternoon.

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