What did Italy accomplish in the Great War?

During the Great War, Italy aimed to expand its territory and assert itself as a major European power. Initially part of the Triple Alliance with Germany and Austria-Hungary, Italy switched sides in 1915 to join the Allies, seeking territorial gains promised in the Treaty of London. Despite facing significant challenges and suffering heavy casualties, Italy ultimately secured territorial acquisitions, including South Tyrol and parts of Istria and Dalmatia, solidifying its presence in the Adriatic region. However, the war also left deep social and political issues that contributed to post-war instability.