They've tried before and it hasn't worked out particularly well for them. Israel's military thanks to their support from the west has put them in a position where they can act without significant repercussions from their neighbors.

That is not to say there isn't without good reason for them to have a strong military, looking at past conflicts. If they didn't Israel would likely be encroached on in a similar manner as they're doing to Palestine.

Really the only option is for the west to push them to behave either by ceasing arms shipments or economic sanctions.

The manga that everyone knows/loves/hates, 177013, also known as "Emergence". Might as well get it out of the way and post it.

The manga that everyone knows/loves/hates, 177013, also known as “Emergence”. Might as well get it out of the way and post it.