These episodes relating to the Beni Kainuka and the Beni an-Nadir are only two of many like illustrations, that might be discussed at wearisome length, which demonstrated two significant facts: Mohammed had succeeded in ridding Medina of its indwelling foes, and he had decided to destroy the Jewish settlements throughout all Arabia. The massacre of the Beni Koreiza followed as a matter of course; and in 628 the last Hebraic stronghold of much account was also dismantled. In the summer of that year Mohammed, heading sixteen hundred men, pounced upon the opulent city of Kheibar, which lay about one hundred miles to the north of Medina--a distance that shows how wide the sweep of the Prophet’s victorious arm had reached. The motive which inspired him to assault this people appears to have sprung from the consideration that they had failed to avenge the murder of one of their own tribesmen by a Moslem; for the Prophet may well have believed that such an aggressively peace-loving clan merited the severest punishment. In any case, they were not true believers; and, at this stage of Islam, that fact in itself constituted a more than ample pretext for the opening of hostilities. Kheibar’s forts fell in rapid succession before the impetuous rush of the now veteran Moslem army. As Mohammed gaily charged from one conquered stronghold to another, he continually raised the rapturous shout: “Allah Akbar! Great is the Lord! Truly when I light upon the coasts of any People, woe unto them in that day!” After the conquest was complete, Kinana, chieftain of Kheibar, was tortured in the hope that he would reveal his hidden treasure. Fires were burnt upon his breast until he was so nearly dead that he could not have confessed even had he so desired; and Mohammed, who realized that he had carried the thing too far, ordered his head to be chopped off.