Israeli airspace is not impenetrable. In both 67 and 73 Arab Air Forces conducted raids inside Israel. In 1989 a Syria defector flew his MiG-23 into Israeli airspace totally unannounced. The same went for US airspace when Cuban MiGs defected to Florida on a number of occasions without being intercepted. No airspace is completely impervious to penetration. It only takes surprise and a lucky strike. The following is an image of the MiG-23 that the Syrian pilot flew into Israel. It is now in an Israeli museum
Israeli airspace is not impenetrable.Gosh, thanks for pointing out something I never claimed.
The same went for US airspace when Cuban MiGs defected to Florida on a number of occasions without being intercepted
There were also a slew of Soviet "Bear" bombers that penetrated US airspace. Again though, this has nothing to do with what we were talking about.