I think that Israel has more advanced technology than Iran. Israel has more startups and has innovated a lot of things. During the late 1990s I was interviewed by an Israeli startup that did document management and they had cutting edge technology that they were developing for it. I wanted to work from my local city but the job was in Israel so I couldn't do it because my wife didn't want me to move. I had to pass up a lot of job offers because I couldn't relocate.

But Israel has advanced technology over Iran and Palestine, and if they wanted to wage a conventional war they'd have the technological advantage over their enemies unless some first world nation gives better technology to their enemies.

The thing about nuclear war is that eventually given enough time any given nation will find a way to make a nuclear warhead. The USA made atomic bombs using 1940s technology and dropped them on Japan. While they were primitive based on what we have today, they were effective.

In truth the fewer nations that have nuclear bombs the better, and we really should be disarming nuclear bombs because of their potential to destroy the world. But we still build nuclear bombs in an arms race with other nations, and other nations want their own nuclear bombs.