Last Friday night, the Iranian military crossed into Israel using a drone launched from a Syrian base. It’s not clear whether the UAV was armed or not, but it was likely a Saeqeh model based on designs reverse engineered from a downed US model.
Israel retaliated by striking the Tiyas air base from which the UAV was being controlled, prompting the launch of several volleys of anti-aircraft missiles which brought down an Israeli F-16I craft over Israeli territory. (The two pilots ejected.) Israel returned fire with a major air incursion into Syria, striking Iranian and Syrian targets.