@MM1940 The airbase in S. Italy protects both SZ95 and SZ97–regardless of the land attacked. If an invader attempts an assault in either SZ, the aircraft in S. Italy can respond.
“A quick reaction team of no more than 3 defending fighters and/or tactical bombers (strategic bombers can’t scramble) located on each island or coastal territory that has an operative air base can be scrambled to defend against attacks in the sea zones adjacent to those territories. These air units can be scrambled to help friendly units in adjacent sea zones that have come under attack. They can also be scrambled to resist amphibious assaults from adjacent sea zones, whether or not the territory being assaulted is the territory containing the air base. They may defend against the enemy ships conducting the amphibious assault even if friendly ships are not present.”