Exodus:Magic and Sci-Fi (DISCONTINUED UNTIL FURTHER NOTICE)

The Federal States Of Calradia or more commonly known as the Imperium of Man had almost completed it's purpose: uniting all of Humanity under one banner. But as if the Gods were mocking us, maybe they were, a First Contact scenario had occured on the edges of the Outer Rim; a collection of planets that were far beyond the capital, quickly throwing a wrench in the current Emperor's plans. What's worse, is that the aliens hadn't bothered to make negotiations with us and declared war on us by the first days. They quickly took over the planets in the Outer Rim, marching onto the admin planet of Tarsovis D. However, the Voidborne, we started to call them, had inferior land doctrines. And so, the only times we have managed to slow them down or hold them completely is on the ground and not in space due to both their numbers and technological superiority. Almost two decades later, the frontline of the battle, the Frontier, was always constantly changing with each star cycle and Calradia was exhausting it's resources both in manpower and in minerals. Not only that, we had encountered more hostile races since then, and had doubled our fronts and wars. If nothing changes, then Calradia is as good as dead. But, a malfunction with experimental technology may change the fate of Humanity and Galaxy to come...

(Authors Note:Hey guys, first time writer here, feel free to read my book if you want and, like, give me tips on writing so I can better myself.
P.s English isn't my first language so bear with me here.
P.s.s I accept constructive criticism)