[Eala]

A "Megiddo-not" Line?

I'm dubious; didn't work for the French. (Yes, circumstances are different, threat is different, but I'm still dubious...)

[Polybius]

A "Megiddo-not" Line? I'm dubious; didn't work for the French.

I doubt that the Israelis will leave their left flank in the air as the French did.

[rmlew]

It works well with Gaza which is essentially walled off.
No defensive measure is perfect. Given a willingness to take enough casualies any defense can be overcome. The Wall will minimise attacks, while maximising the harm to the Islamists. .

The real difficulty is, after walling off the border with the PA, how does Israel patrol the border between Jordan and Arafatistan?
The border between Egypt and Gaza is already hard to defend.