The Great Jewish revolt against Rome in 66 CE was not a simple conflict between a united Jewish people and the legions of Rome. The revolt was, in fact, a segmented conflict that included hostilities between Romans and Jews, the Greek-speaking population of the East and the Jews, and even Jews against their own brethren.
These conflicts greatly changed the character of the war; for example, in the initial stages of the revolt, the Jews did not face any large Roman force, but instead the population of cities across the provinces of Syria and Judea. The Greek-speaking urban dwellers and the Jewish population fought a bloody cultural conflict against each other during the initial outbreak of the revolt.
For both sides the confusion and chaos of the revolt brought into the open their long-standing hatred. This "Judeo-Syrian war" sapped Jewish strength in the East and supplied the Romans with allies and safe havens for their armies. The Romans also recruited many of their auxiliaries from the Greek-speaking population, thus supplementing their legions with a local force that were already consumed with hatred for the Jews.