Millenia.
They’ve been at this since biblical times.
This is an ongoing culture war like Sunni vs Shia or Protestant vs Catholic.
The original people involved in the fight are long dead from old age, replaced by generation after generation claiming to be the victim (on both sides, of course).
This is why it’s best to stay out of it and watch from a safe distance. There is no right or wrong, good vs evil, victim and oppressor. It’s A vs B, cats vs dogs, my sports team vs your sports team.
Israel happens to have the technological edge at the moment, but that’s after a couple of thousand years of being a powerless diaspora victim to oppression and actual genocide.
Conversely, their opponents cry victim while we all full well know that if they got the military upper hand they’d do to the Israelis the same or worse.
It’s depressing to see this from the outside, watching the long term damage wrought by what amounts to mind viruses.
That’s all religions are: particularly addictive memes. Memes that kill hosts to protect themselves from other memes.
If you’ve picked a side, you’ve picked a meme you’d like to be infected by.
I prefer the vaccine.