Zoroastrianism was the dominant religion for thousands of years from Northern India through the entire Arab world. Then within a couple centuries it was destroyed by Islam. A pity, Zoroastrianism was rather benign as far as religions go and wasn’t interested in making new coverts or conquering new lands (which is why the locust plague of Islam’s forced conversion by sword point swept it away so quickly).
Actually, Zoroastrianism did have a militant phase, when it was the state religion of the Sassanid Persians (226-651 A.D.). They didn’t make converts because non-Persians were turned off by the Zoroastrian custom of leaving the dead on towers for the vultures. Still, the creed’s emphasis on a constant struggle between good and evil made it useful for motivating warriors, and they tried conquering the lands on Persia’s western frontier, either in the Roman Empire or in Arabia. They failed in the end because Islam did an even better job of motivating warriors than they did, with its promises of rewards both in this world and the next.