Holding no grudges, Moroni rushed to the aid of Pahorah in Gideon. Pachus was killed, and the kingmen were tried. Moroni sends aid to Helaman, Lehi, and Teancum. Willing Lamanite captives were then settled in the land of Jershon (62:17, 27). They produced and supplied provisions to the army.
Nephihah was recaptured without any losses by use of ropes and ladders at night (62:23). Moroni drove the Lamanite army from the land of Lehi to the land of Moroni, where they camped (62:30–32). At night, Teancum crept into the enemy camp and killed Ammoron, and Teancum himself was also killed (62:35–37), but the war ended (62:38–39). As you reflect on this long campaign, you might wonder what you have learned from this and done in building your character to be sure that your heart has been softened and not hardened by trials and difficulties in your life (62:41). This seems to be something that Mormon wants his readers to think about. See Book of Mormon Central, “Why Was Teancum Captures and Killed? (Alma 62:36),” KnoWhy 170 (August 22, 2016).
Moroni retired and died only two years later (62:43; 63:3). Was his death premature? Was it the result of war injuries, disease, or other stresses of seven years of high-tension conflicts and challenges?
In addition, Helaman regulated the church and but then also died, only one year later (62:45–52).
Helaman’s brother Shiblon took charge of the plates, but he also died only three years later (63:1, 10).
Helaman’s son Helaman, still quite young, was at least a little older and could take charge of the plates (63:11).
Pahoran returned to the judgment seat but he too will die only four years later (62:44; Helaman 1:1).
Obviously, all of these deaths, along with the numerous casualties sustained during the past years of warfare, must have taken a high toll, leaving a power vacuum and weakening the central Nephite governmental and depth of church leadership.
Hagoth and others, including Helaman’s youngest brother Corianton, began moving to the land northward or sailing away (63:5, 9). They were never heard from again, as far as we are told. See Book of Mormon Central, “Why Did Mormon Mention Hagoth? (Alma 63:8),” KnoWhy 171 (August 23, 2016).