What is treaty of London?

The Treaty of London, signed in 1915 during World War I, was an agreement between the Allies and Italy, promising Italy territorial gains in exchange for joining the war on the side of the Allies. Italy sought to gain territories such as South Tyrol, Trentino, and parts of the Adriatic coast. The treaty was significant in shaping post-war Italy's borders but also led to dissatisfaction among various ethnic groups in the newly acquired areas. Ultimately, the treaty's promises contributed to the complex dynamics of European politics in the interwar period.