To create Greater Israel

Divide and conquer, like every coloniser in history.

The more extreme elements of the Israeli government want to expand Israel to the borders of the previous empire at its biggest (not sure if that’s based on biblical sources or actual reality, but that doesn’t matter to those people anyway). Their ambitions go far beyond ‘just having a safe country for Jews’.

And I guess if every country around them is in civil war they can’t really pose a threat to Israel beyond the occasional suicide bombing.