ABSTRACT During the Great War, the liberal principle of private property as an inviolable right of every individual – whether citizen or non-citizen – was completely overturned in Europe. Jurists played a fundamental role in this transformation. In Italy, a leading part was played by a group of jurists from Milan. Between 1915 and 1918, they tried to influence Italian treatment of enemy alien property and redefined the doctrinal view on private property. Moving from the idea of asset seizure as a measure for protecting enemy property, they gradually embraced a logic retaliation and the demands of total war. Their proposals increasingly became more radical, eventually calling for confiscation of all enemy alien property. Ultimately, they anticipated the solution later adopted by the peace treaties and fully endorsed a new relationship between citizens and the State.