They have every right to be in Lebanon or in Lebanon’s air space. They would not need to be there if not for Iran and Syria basically living in Lebanon through their surrogates. Maybe not even surrogates. Probably plenty of Iranians there in person.
You gave good reasons for the IDF to be flying over another nations airspace. Reason with which I happen to agree. Tell me however, if Al Quaeda had an air force, would you feel the same about them flying over the U.S.?
......They have every right to be in Lebanon or in Lebanon’s air space......
Short of a declared war, they have no right to invade Lebanese air space