Must... resist..
No of course, I'm not trying to imply that Israel are innocent. What I mean is, Hamas' rockets give Israel a demonstrable, tangible event to respond to. They can, however tenuously, claim that they are retaliating to. While there is no tangible pressure or threat from the wider world, the only thing that can break this current cycle (which unfortunately leads where we all know it leads) is Hamas stopping. Then Israel have no excuse and hopefully international pressure will scale up drastically. With no rockets from Gaza, Israel wouldn't be "retaliating" to anything, they'd have to accept peace. Something needs to give a break to the fighting so that proper talks can begin and I'm pretty sure that something is Hamas. We'd be unrealistic to expect Israel to stop fighting while there are still rockets being fired at it, with no pressure, why would they?