It's not like it hasn't been done before. When the received a letter from the Emperor of Byzantium in the 11th century asking for some help with some pesky Turks, the Pope used it as an excuse to raise a HUGE army under the flag of Rome. It was justified by dint of the "disocvery" that Christ had been "misquoted". No kidding. Apparently, it was alright to kill non-Christians. That whole turn the other cheek thing didn't apparently aply to pagans, heathens, Jews, Zoroastrians, Buddhists, Unitarians, Scientologists or any of the sects of wild savages laying siege to Constantinople.