Priority Two: Accomplish this job incurring the minimum possible number of Israeli military casualties. More than a thousand military dead would be regarded as a failure.
Priority Three: Minimise Palestinian civilian casualties as much as fulfilling the two higher priorities permits. Over 10,000 Palestinian civilian deaths would be a failure, because more than that would cause such outrage globally that the operation would have to be stopped.
The free-fire zone is essential to this concept, because otherwise both Palestinian civilian deaths and Israeli military deaths will be too high. Whereas if there are no civilians around, you just call in the artillery or the bombers every time you encounter resistance.
You also need somewhere else to put the civilians while you wipe out the Hamas fighters, so you will have to do it piecemeal: divide the Strip up into three zones and move the civilians around so there are as few as possible in the zone you are currently cleansing – starting with the northern one.
Two further implications of this strategy: you will have to filter the entire population of Gaza (2.3 million people) to weed out Hamas members as you move it between the three zones. And the Israeli hostages have to be written off: there’s no way to extract them safely from the hundreds of kilometres of tunnels they are being held in.
And one other thing. Who is going to give the residents of Gaza access to food, water and medical care while they are shuffled from one overcrowded zone to the next over a period that cannot be less than a month? Either Israel, or nobody at all.
Now, the big question. If I am right about the Israeli strategy, can it possibly work?
I very much doubt it, because it is too complicated and would take far too long. Israel has enough international support after the massacres that it can do pretty much anything it wants to the Palestinians in Gaza for the next week or so, but then the sympathy and the patience start running out.
It’s still the least bad option available, given what the current government is asking the IDF to do. And while the strategy is almost bound to fail, it will probably kill fewer people than any other that the Israeli population would accept in its current state of mind.
■ Gwynne Dyer’s latest book is The Shortest History of War.