Mormon gives us very little information at this time about what was happening on the west, but he simply indicates that Moroni was able to stabilized the southern and western borders sufficiently to be able to turn his focus to the east and reinforcing Teancum. Additionally, Mormon commands Teancum to retake Mulek, although Teancum decides that it would be too costly, and might not have been effective.
Therefore, Teancum waits in the city of Bountiful for Moroni’s reinforcements. They come near the end of the twenty-seventh year. Teancum’s assassination of Amalickiah was on the very first day of the twenty-sixth year. It isn’t until almost two years later that Moroni is able to come to his aid on the eastern front. Mormon gives us little information about what happened in those two years. Presumably, Teancum and the Lamanites were in a standoff on the eastern front, and Mormon was establishing at least a standoff on the western front.