Moroni prepares for a situation where each city might have to stand on its own. His strategy in the last war was to have strengthened the entrance points, with the expectation that by defeating the army at the entrance to the land of Zarahemla. Just as the Lamanites learned and adopted armor to be more effective in hand to hand combat, they will surely learn ways to deal with the protected cities. Thus Moroni must now prepare for a war that might come further into the territory than ever before. Moroni therefore extends his fortifications to each city.