Helaman saved the Ammonites from almost breaking their vows to the lord and almost taking up arms to fight against the Lamanites. Helaman realizes that the Ammonite sons didn't take that vow. Helaman leads those 2,000 sons, named, The Stripling Warriors. The Stripling Warriors are a very powerful army, that fought tons of battles without any of them dying. Helaman is very righteous, and had a good relationship with Moroni.