I am also, like many others on this thread, very confused at suggestions that high end non-Iranian assets be somehow "deployed" for Iran's military against Israel. What terms of what defensive pact between Pakistan and Iran, or between China and Iran, are being invoked in this proposed endeavour? As far as I know, no such treaty exists. Furthermore, no air force is going to "donate" a fighter jet via some clandestine network for the same purpose. These aren't AK47s produced in some blacksmith's in Peshawar.