I dont think Iran can attack Israel in the first place with or without shield, Iran should stop threatening countries if they dont wanna get sabotaged.
Nonsense. If by attack you mean strike first, I agree. If by attack you mean do any harm, even in retalliation, you're sorely mistaken. I'm not saying Iran is that strong, although asymetrically, Iran is very good, but they have a F ton of missiles. Those things do explode.
Bahrain is an arms reach from Qatar. If something happens there, 2 minutes later we can be there if need be. Personally I don't think Turkey should intervene but having the capability is good.
You like Turkey to be in the position many people accuse Iran of doing in Syria today? Help a small minority oppress a large majority who want to be free?