By JON GAMBRELL (Associated Press) DUBAI, United Arab Emirates (AP) — Iran fired air defenses at a major air base and a nuclear site near the central city of Isfahan after spotting drones early Friday morning, raising fears of a possible Israeli strike in retaliation for Tehran’s unprecedented drone-and-missile assault on the country. It remained unclear if the country was under attack, as no Iranian official directly acknowledged the possibility and Israel’s military did not respond to a request for comment.