I don't think Israel is scary. Its just surrounded by a bunch a coward Arab countries who don't have courage to fight and defend themselves. Israel is always ready to fight while KSA KING is busy making peace deals with everyone around the world.
For some reason Israel is supported by USA so much and reason is not clear to me. During 1973 Arab conflict with Israel, USA jumped in supplied tanks via airlift that saved Israel. It was for the first time in history that tanks were supplied via aircraft's. It's very obvious that Israel cant survive without support of USA.
They have nothing to fight. The only country with armaments in the region is Iran but are also cautious for they are surrounded by countries they also have conflict with. If they ever destroyed Israel, they would all be bombing each other after it.
But all the rest depends on the US army that's why the US has a bunch of military camps on each border. You could either look at it that way or the US also has to make sure they fight each other so they have reason to occupy.