The option is given to these prisoners to become part of the people of Ammon as had the prisoners from the battle Moroni fought on the way to Nephihah (verse 17). Once again, there is an oath not to take up arms that may parallel the Ammonite oath. We also learn that when these Lamanites joined with the people of Ammon, they also joined in that people’s efforts to support the Nephite war effort by providing provisions. The increase in the number of men attending to the production of food would have increased the availability of those supplies, and it is in this sense that “the Nephites [were] relieved from al great burden.”