First and foremost an immediate ceasefire. All nations should be demanding this openly. Then, when a ceasefire is in place, an investigation into all aspects of the Hammad attack and the "land grabbing" situation in Gaza.
Unfortunately this will never happen as there is invested interest from the West to support Israel, even though they look like they are committing genocide. I reiterate the looks like.
Money talks. Separate money from state and a hell of a lot of these problems will disappear. I fear for the worst, what with Israeli officials not ruling out a nuclear strike!