There’s some talk about enforcing a no fly zone in Libya, but this is not an easy thing. You might think you just put up a couple signs saying, “Don’t fly here,” but then people flying overhead will say they didn’t seem them. So instead you get some flying signs that hover in midair and put them up in the sky, but it’s hard to get full coverage of the sky as people will just say they were flying too high or too low to see them. You could just put more flying signs in the sky at different heights, but I can only assume flying signs are really expensive if not completely made up (I know I’ve seen them somewhere, but it may have been the Jetsons and Futurama).
A better idea for a no fly zone are dinosaurs with surface to air missiles mounted on their backs. No one can claim they didn’t know that dinosaurs were deployed to their country as that’s the sort of news that gets around. The only problem is they may also enforce a no walking zone as they could eat people.
Peace in the Middle East is complicated!