Many ancient prophets as well as modern apostles and other general authorities have served their countries faithfully as members of the military. The prophet Mormon himself led the Nephite armies multiple times into battle. He was intimately familiar with the horrors of war. He also knew that the last days, our day, would be filled with “wars and rumors of war” (1 Nephi 12:2). It is fitting, then, that the Book of Mormon contains so much war. Members of the Church of Jesus...