The Lamanites who were converted through the preaching of the sons of Mosiah were afterwards known as the people of Ammon. They left their own lands and went to reside in a place called Jershon, not far from Zarahemla. They entered into a covenant with the Lord that they would never take up arms against their Lamanite brethren. Now, there were a great many of the Nephites who had broken the commandments of God. Because of that, they had lost their membership in the Church, and were not numbered among the people of the Lord. That was a terrible thing. But their condition became much worse when they turned traitors, joined themselves to the Lamanites, and began to fight against their Nephite brethren. The chief captain over the armies of the Nephites at that time was a young man named Moroni. He Avas a God-fearing man, and a prophet. He was also a great general. In time of peace he prepared for war. He provided his soldiers with thick clothing, with breast-plates, head-plates and arm-plates, as protection against the deadly weapons of the Lamanites. The Lamanite armies had at their head a man named Zarahemna. He was a great soldier, too. But he had not thought of protecting his men as Moroni had protected his. The Lamanite soldiers were naked, except for a girdle of skin, which they wore about their loins. Moroni heard that the Lamanites were coming to make war upon his people. He, therefore, got his armies ready to meet them. Feeling confident of an easy victory, the Lamanites marched towards the land of Jershon. As they drew near it they saw Moroni's army prepared to oppose them. Seeing how well the Nephite soldiers were protected, the Lamanites changed their minds, and instead of attacking Jershon they turned and proceeded towards the land of Manti. Moroni did not know where the Lamanites were going, so he sent out spies to watch them. He also sent a messenger to Alma to request the prophet to ask the Lord to reveal to him the movements of the Lamanites. The Lord told Alma they were marching towards the land of Manti. On hearing that, Moroni left part of his army in Jershon, to protect that place, and with the rest he hastened to Manti, arriving there some time ahead of the Lamanites. He called to his assistance all the men in Manti who could bear arms, and when the Lamanites again appeared Moroni was ready to give them battle. The war commenced. Both sides fought with all the courage and fierceness they could command. Several times the Lamanites were driven back, and each time they returned to the conflict. The slaughter which took place is terrible to read about. Before the war was half over, thousands of lives had been sacrificed.