This is the ending of the Blue Steel Yamato series (Based from a RP I did with my friends). Now Equestria is facing an old threat, Join Imperial Crest and his friends fighting their way to stop this old threat, will they uncover the mystery of this old threat and will it change the coarse of History.

Just to take a note the story has a similar plot to the anime Arpeggio of Blue Steel Ars Nova Cadenza but with different characters, locations and vehicles etc.