Benvenuti (Welcome) to Naval Air Station Sigonella: "The Hub of the Med". NAS Sigonella is a U.S. Navy installation and an Italian Air Force base in Sicily, Italy. Although a tenant of the Italian Air Force, NAS Sigonella acts as landlord to more than 34 other U.S. commands and activities. It is located 15 km west and 11 km south of the city of Catania, and some 40 km south of Mount Etna. Because of its location near the center of the Mediterranean Sea, NASSIG is well-placed to support operations by the U.S. 6th Fleet, other U.S. military units, and U.S. allies and coalition partners. It also serves as an Italian base for the 41º Stormo Antisom.
Click on this link to see the official Naval Air Station Sigonella webpage.
A very interesting history of Naval Air Station Sigonella can be found following this link.