Nephite Decline and Downfall
According to Ammoron’s request, Mormon, age 24, goes to hill Shim, the place of records, and adds to the plates of Nephi the account of his people—the tale of their wickedness and sin.
In Mormon’s 34th year, the Lamanites attack the Nephites and drive them north to a land called Jashon.
The Nephites retreat to a land called Shem, and try to centralize themselves; two years later, the Lamanites begin to advance.
Mormon inspires his people by urging them to stand by their women and children, and boldly face the Lamanites.
The Nephite army of 30,000 takes on the Lamanite army of 50,000, and the Nephites win; but it was not in consequence of divine providence.
Mormon, while sorrowing for the people’s wickedness, leads the Nephites against the Lamanites and the Gadianton Robbers and they are able to regain much of their territory.
The Nephites, Lamanites, and Gadianton robbers make a treaty in which the land is divided: the Nephites get the northern land, the land of Zarahemla, and the Lamanites get the southern land, the land of Nephi.
Mormon’s Appointment as Military Commander