The defeat of the Pope by the Kingdom of Italy gave rise to a long period of antagonism between ecclesiastical and Italian powers. This resulted in the Catholic Church suggesting its believers not to take part in the affairs of the Kingdom of Italy, and the consequent laicisation of Italian politics. The Kingdom of Italy and the Catholic Church managed to reapproach under Fascism with the stipulation of the Lateran Treaty. Among other things, the treaty allowed for the foundation of Vatican City, a microstate over which the Pope has full jurisdiction. The Lateran Treaty survived the fall of Fascism and the constitution of the Republic of Italy, and remains valid to these days.