​​1915

• 24^th May – Italy went to war against Austria-Hungary. Italian soldiers overtook the previous borders and attacked the enemy positions.
• 25^th May-28^th May – Occupation of Mount Altissimo, Ala, Cortina d’Ampezzo.
• 12^th June – Italian soldiers occupied the Plezzo Valley.
• 16^th June – The Alpinos conquered Mount Nero through an intrepid action.
• 23^rd June-7^th July – First Battle of the Isonzo.
• 18^th July-4^th August – Second Battle of the Isonzo.
• 18^th October-4^th November – Third Battle of the Isonzo.
• 10^th November-2^nd December – Fourth Battle of the Isonzo.
  

1916

• 11^th March-19^th March – Fifth Battle of the Isonzo.
• 12^th April – Italian troops attacked on the Adamello. They fought over 3000 meters high.
• 18^th April – The peak of Col di Lana was conquered after a mine had blown up.
• 15^th May-31^st May – The Austrians undertook a punitive expedition, called “Strafexpedition”, against Italy. After bloody battles the attack failed.
• 29^th June – The Austrians launched asphyxiating gas in the area of Monte S. Michele.
• 12^th July – Cesare Battisti and Fabio Filzi were hanged after having been caught during an attack on Monte Corno some days before.
• 6^th August-17^th August – Sixth Battle of the Isonzo. Gorizia was conquered by the Italians. In the first day of battle Enrico Toti died.
• 28^th August – Italy declared war on Germany.
• 14^th September-17^th September – Seventh Battle of the Isonzo.
• 10^th October-12^th October – Eighth Battle of the Isonzo.
• 1^st November-2^nd November – Ninth Battle of the Isonzo.
  

1917

• 12^th May-28^th May – Tenth Battle of the Isonzo.
• 10^th June-29^th June – Battle of Ortigara.
• 17^th August – Eleventh Battle of the Isonzo and Italian victory on the Plateau of Bainsizza.
• 24^th October – The Germans and the Austro-Hungarians waged the twelfth Battle of the Isonzo and they managed to pass through the Isonzo Valley, between Tolmino and Caporetto.
• 8^th November – General Cadorna was dismissed from the position of Army Commander. He was succeeded by General Diaz.
  

1918

• 15^th June-23^rd June – The Battle of the Solstizio. The Austro-Hungarians managed to go beyond the Piave river. The Italian soldiers resisted. On 23^rd​ the enemy retreated.
• 9^th August – D’Annunzio flew to Vienna.
• 24^th October-3^rd November – The Italians undertook an offensive along Grappa and Piave. The Italian troops occupied Vittorio Veneto. The Austrian front collapsed everywhere. Austria-Hungary asked for the armistice.
• 4^th November – the hostilities between Italy and Austria-Hungary ended: Bulletin​ of the Victory.
• 11^th November – Armistice between the Allies and the Germany whose armies retreated everywhere. The Great War ended.
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