The Crystal Empire never knew what hit them. One moment they weren't surrounded by an army of demonic soldiers led by their arch nemesis, the next, they were. In less than a week the Empire fell to Sombra. Within another month the Griffin Kingdoms sucumbed to overwhelming numerical superiority and Yakyakistan has sworn neutrality. Equestria now stands alone; between Sombra's Crystal Empire and the rest of the free world. Well... almost alone.

I do not recommend reading this if you are not ok with some major "war is hell" kind of stuff. This is not going to be fun times for the ponies. Also, major character death (for obvious reasons)