It comes to all of us in many different forms for a million different reasons.
In The Book of Mormon, in Mosiah chapter 23, Alma and his people were prospering in the land of Helam when a Lamanite army made their appearance. We all have our own armies appear daily in the forms of fear, anxiety, stress etc. Whether it’s fear of an unknown future or a natural disaster, something currently happening that’s anxiety inducing or stressful, or just feeling scared from a circumstance we can't control—perhaps that my toddler won’t make it in time to go to the bathroom in a public place—the armies always come.