Eden and Nod
Genesis 4:16
[So Cain went out from the lord's presence and lived in the land of Nod, east of Eden]
After the UCM left Earth and colonized Eden and Nod, the humans in Australia attacked the CFA forces. The CFA at first had the advantage because the UCM left all their military equipment behind. But that soon changed when the humans started to place mines throughout the oceans. The UCM battleships didn't have the same protection below as they did above. The mines ripped right through the metal plating below and started causing major casualties for the CFA. After three years of war against the humans, the cats fled the planet. They found Eden and Nod, but knew to stay away from them. Kodi and Aleu were in the only ship full of dogs and they flew to Eden. The cats (all of them and their twenty ships) fled to the outer regions and settled on a planet they call Daroopa. No one knows how they got the name, but that's what they named it. The humans annihilated every species that could and would make war on them. What they didn't know was the dogs had given every species ships so they evacuated the planet as well. They settled on planets anywhere they could, but Eden and Nod were off limits.
The humans, after almost forty years of oppression, were finally in control of the planet. They repopulated the Earth and at first, things were great. But then they soon found out that their population was going through the roof and a great famine happened. The humans' only way of survival was to send people out to different planets. And that's what they did. They settled on a bunch of planets and discovered a bunch of different alien races. They didn't know what the creatures were capable of so they settled on different planets. Two of the planets were called Reach and Harvest. The humans kept settling on different planets and soon, most of the planets were inhabited by humans. But they could not go to Eden and Nod for that is where their worst enemy lives.
On the planet Eden, huge cities shot from the ground and no one knows why but something in the air stopped the aging process. The same thing with Nod. On Eden, they developed a trade route with Nod and began trading with each other. Eden was full of metals and diamonds while Nod had a lot of food and plant life. So the trade was metal for food. And with this new alliance, nothing will prepare them for what they will face next.