As we were going through the chapters, we came across Helaman's epistle to Captain Moroni. In his epistle, he shares which Nephite cities the Lamanites have obtained by the shedding of blood. The cities he mentions are Manti, Zeezrom, Cumeni, and Antiparah. If you look on the map, these are centered around the south west part of the land, next to the south wilderness. It's as if the adversary and his influences have infiltrated through the main body of Nephites, creating a poison they must rid themselves of possessing. Helaman's mission is to re-acquire these cities one by one, without the shedding of blood, if possible.