Birthing Pains: The Wars From Without- Book One

For the first time in many millenia Earth is a peaceful place. Most of humans that had decimated and destroyed all that they touched have left to conquer the stars. The few that have remained behind have split off into small communities across the globe. Their purpose is to help the Earth to heal. They have abandoned or destroyed nearly all technology, save communications and medicine. But into their quiet an alien race appears in the sky. The newcomers see something that they want for themselves and set about trying to take it. But what they want is not the planet. The peaceful humans have no idea what they invaders want. They only know that they are once again at war. To complicate matters further the humans are faced with two other races that have cohabitated their little rock for centuries unknown to them. The invaders have flushed out a subterranian race of Dwarves and a cold weather race of Elves. The Humans have no idea what to do with either race. But somehow they're going to have to learn to live and fight the threat together or they're all going to die together.