For Israel, the war in Gaza is a zero sum game. Israel must win and Hamas must lose. Nothing but total victory over Hamas after the appalling terrorist attacks which left over 1,400 Israelis dead, hundreds injured and over 200 civilians taken hostage, will suffice. But how is victory going to be defined and what is Israel’s end game?

When the dust of war finally settles what does Israel want Gaza to look like? An empty, lifeless, bomb-cratered ruin or a self-governing entity, secure within its own borders and no longer a threat to Israel? Unless Israel has a clear strategic...