I highly think it is monotheism as zoroastrinas pray to Ahura Mazda and jews pray to Yahweh. However, Zoroastrianism seems have a dualistic perspective with good guy and bad guy going on with a hero Ahura Mazda and there's a counter evil to it.
I would highly recomment watching videos on this topic by "Cogito" on you-tube as he explains both religions very well
To come to peace you would have to change the mind of almost every powerful person in the countries at war. It would be easier to end the war because it is easier to use force than to use opinion.
