I conclude, therefore, that this migration of Nephites at this time extended no further northward than southern parts of Mexico, say about the twenty-second degree north latitude; in other words, the Nephites were occupying the old seat of Jaredite empire and civilization, and the land of Moron which the Nephites called "desolate," not because of its barrenness--save for the absence of forests of timber--"but because of the greatness of the destruction of the people who had before inhabited the land;" that is, the Jaredites. The next important event affecting the movement of population and the possession of the land north and south was a war between the Nephites and Lamanites, that began with the invasion of Nephite lands by the Lamanites in 35 B. C. Owing to dissensions among the Nephites, many of that people had deserted to the Lamanites. It is quite possible that this was owing to the resentment felt by the dissenting Nephites because of the class distinctions which arose on account of wealth and pride; and instead of the dissatisfied joining in the movement northward, as many did, some of them went southward, joined their fortunes with the barbarous Lamanites, and fomented the spirit of war against their brethren. In this war the Nephites were destined to meet with a new experience. Hitherto in their wars with the Lamanites, since uniting with the people of Zarahemla, at least, the Nephites had been able to hold their lands against the Lamanite invasion; and though they had lost here and there a battle, they were uniformly successful in their wars. In the war of 35-32 B. C., however, the Lamanites drove the Nephites from all their lands in the south continent. Even Zarahemla was taken, and the cities in the land Bountiful, extending, be it remembered, northward from the land of Zarahemla to the isthmus connecting the two continents. The Nephites were thrown wholly on the defensive. They concentrated their forces at the narrow neck of land; hastily fortified it, and by that means prevented the invasion of the north continent. [17]