After resisting 150 bombing runs by the Allies in the Second World War, the cisterns continued to be used by the Italian Air Force to hold aviation fuel.
Use of the Sigonella air base for the U.S.-Israeli war against Iran falls outside of the scope of agreements, requiring parliamentary approval in Rome.
Italy hopes that pooling maintenance will encourage users to send jets to its fledgeling F-35 maintenance hub at Cameri air base in the country's north.
Italy is lobbying France and Germany to back a plan for European tax breaks and financing for joint European defense procurement and development programs.
Fours year on from a NATO air campaign that triggered chaos in Libya, the country has grabbed headlines again as Islamic State fighters make a murderous debut alongside warring militias, rendering the return of stability ever more remote.