Italy

Italy (イタリア) is a country located on the southern coast of Europe, on a peninsula extending into the Mediterranean Sea.

Background
The Vatican, the central base of the Roman Catholic Church, is located within Italy's capital Rome. The Wings to the Future Core (未来への翼中心核) is located in Faenza, Italy.

La Regina del Mare Adriatico Arc
Chioggia and the Adriatic Sea are the setting for a series of events occurring during Kamijou Touma's holiday to Italy, involving a plot by the Roman Catholic Church to use La Regina del Mare Adriatico to destroy Academy City.

Document of Constantine Arc
Italy was one of the countries affected by the riots brought about by the use of the Document of Constantine.

Toaru Majutsu no Index Light Novel Volume SS2
On the Second Friday of October, Misaka 17203 was one of the Sisters sent to Gemstone Mining research organizations around the world. She was sent to Faenza, Italy, at the Wings to the Future Core, to destroy the facilities and rescue the gemstone there. During her periodic progress report, she mentioned that a number of the tanks were making it a bit difficult for her.

World War III Arc
During World War III, a few units of the Italian army were deployed to help with the war.

Coronzon Arc
Venice was mentioned when Tokiwadai Middle School students were trying to decide where to go on a "vacation" after Academy City was shut down.