This story is a sequel to The Red Sun Rises: Homefront
As your standard teenage pony with a cutie mark that hasn't come yet, Crimson Dawn is quite restless. He lives in a quiet town with all his friends. Then the Dominion of Apollo declares war on his homeland Atlantis. Crimson and his friends immediately enlist in the Atlantean Reserve Emergency Army (AREA) and journey their way to the field of battle, believing it to be a game. After their first battle, they learn what it truly means to be a soldier and become determined to prevent Atlantis from falling to Dominion hooves.
Meanwhile, their hometown, on the continental corner, must defend the waters and a technological wonder to keep the Dominion from gaining naval access to the Atlantean capital. Captain Middle Road and her small fleet is on its own, with the Atlantean Navy spread throughout the seas.
Takes place in The Red Sun Rises universe, beginning about 16 years before Siege of Manehattan. The story starts there, so I suggest you read it first.
https://www.fimfiction.net/story/346511/the-red-sun-rises-siege-of-manehattan
If I could get some feedback, that would be amazing.