Assuming this is true and with all this denial from the arabs and Israel saying nothing sounds like it is but if it is true the IAF should have at least thought to cover their markings. Things like this though are much more likely to bring peace than any artificial treaties because this builds trust and at a military level. Long term the best form of peace making would be to create some kind of Middle East version of NATO to deal with all threats in the region not just Iran and an attack against one of us is an attack against all. Israel has the hardware and military knowledge arabs don't and the arabs have the money. Together they can create a major military force to defend the Middle East and surrounding areas from all threats. Ability to make war usually has a better chance of peace making than treaties you been dragged into and are just words on paper it doesn't lead to good relations.