Alma and his sons preach the word—The Zoramites and other Nephite dissenters become Lamanites—The Lamanites come against the Nephites in war—Moroni arms the Nephites with defensive armor—The Lord reveals to Alma the strategy of the Lamanites—The Nephites defend their homes, liberties, families, and religion—The armies of Moroni and Lehi surround the Lamanites. About 74 B.C.