Alma - 62
Discussion related to this chapter in the Book of Mormon
Moroni marches to the aid of Pahoran in the land of Gideon. The king-men who refuse to defend their country are put to death. Pahoran and Moroni retake Nephihah. Many Lamanites join the people of Ammon. Teancum slays Ammoron and is in turn slain. The Lamanites are driven from the land, and peace is established. Helaman returns to the ministry and builds up the Church. About 62. 57 B.C.
Source: LDS Scriptures