Sardinia along with the Aosta Valley, Trentino-Alto Adige/Südtirol, Friuli Venezia Giulia and Sicily. Its particular statute, which in itself is a constitutional law, gives the region a limited degree of autonomy, entailing the right to carry out the administrative functions of the local body and to create its own laws in a strictly defined number of domains. The regional administration is constituted by three authorities: Since 2016, Sardinia is divided into four provinces (Nuoro, Oristano, Sassari, South Sardinia) and the metropolitan city of Cagliari. Around 65% of all the Italian and NATO military installations in Italy are on Sardinia, whose area
Sardinia occupied the territory. The Giudicato of Arborea, having Oristano as its capital, had the longest life compared to the other kingdoms. Its later history is entwined with the attempt to unify the island into a single Sardinian state ("Republica sardisca" "Sardinian Republic" in Sardinian, "Nació sarda" or "sardesca" "Sardinian Nation" in Catalan) against their relatives and former Aragonese allies. In 1297, Pope Boniface VIII established on his own initiative ("motu proprio") a hypothetical "regnum Sardiniae et Corsicae" ("Kingdom of Sardinia and Corsica") in order to settle the War of the Sicilian Vespers diplomatically. This had broken out in 1282 between