How? By setting fires.

You see, setting fires is practically the national SPORT or PAST-TIME for Israeli Arabs --- whom Israel has given citeznship to, welfare, all the rights and perks (without the responsibility to serve in Israeli Army, sweet deal!)

As "thanks" Israeli Arabs set fires practically every week to see if Israel will burn down (it's hot environment, lack of water for fire-fighteing, lack of resourced to extra fire-fighting units that you have in Europe or the US)

So HAMAS will make a few phone calls, and Israel will literally be ablaze. Something along those lines.