How did Pope Urban unite his forces so they would be willing to go to war despite a lack of biblical justification for doing so?

He made a rallying cry that "God wills it."

In 1095, during the increased conflicts between Muslims and Christians in Europe. Pope Urban II charged all the Christians alike to reclaim the Holy Land from the Muslims. To call for action. He claimed that "God wills it" to take the territory. The speech acted as a rallying cry or speech for the Christians.

please mark this answer as brainliest