I suppose it was to be expected. The Reichgo (ET) imposed order on one section of our corner of the galaxy, primarily by moving in on certain planetary systems to get what they wanted, even by toying with the genetic code of the locals if that was what it took. Meanwhile, the Kargill imposed a kind of order of fear on the other portion of our interstellar neighborhood, mostly by not permitting one civilization to impose on another. Even trade was carried on very carefully, and outright shunned by many. The races became isolated in Kargill space, each left to develop in its own way and at its own pace.
I suppose it was inevitable, though, that these two powers should eventually clash. That happened about the time Joan of Arc was leading the French against the English. Things looked bad for those otherwise innocent races out moving between the stars. They did not look quite so bad for us, being as we were on the border, but technically in a back corner of Kargill space. No one bothered us at first. The Kargill would not permit it.
During those two centuries of interstellar war, once the war started, we were touched twice:
The Corsicarian were a people who lived and died according to their family ties, and far reaching, extended families at that. They had a Patriarch and Matriarch and various relations such as uncles, aunts and cousins to the tenth degree. Their planet, though, was badly overpopulated, and they felt with the Kargill distracted, they just might be able to spread out a little. They wanted land, and one extended family saw the earth as a perfect opportunity for settlement. After all, Earth came complete with a solid, working class.
The Corsicarian arrived at Gibraltar in 1490. The Patriarch himself wished Columbus the best of luck. They had no chance to set down roots, however, not because we were a rebellious lot, nor because the local Kargill returned from the war and intervened, but because of the other species that was eyeing the earth along with eyeing any number of other worlds.
Dubbed the “Spiders” by any human who saw them and lived (and there were not many), these insect-like creatures saw the Reichgo-Kargill war as the perfect opportunity to pursue their destiny which in the short form was to destroy all other forms of intelligent life. While not quite the mad fanatics that the Balok had been, they were nevertheless killers of the first order, and like insects, they swarmed and seemed impossible to get rid of completely.
The Spiders actually looked more like bent upright wasps without wings. They stood on four feet and had two arms free. Though a bit smaller than the average human, there was no chance that they could be squashed with a rolled up newspaper. They were poisonous besides (though they did not sting or have a stinger) and they spat a kind of acid that could melt unprotected human flesh.
Needless to say, the Corsicarian had their hands full, and eventually wanted no part of it. The final battle occurred in the Caribbean where at the time there were pirates and privateers and all sorts of Spanish gold. There was also the Flying Dutchman, but not at all like the Disney version.
The Spiders were beat back and I am sorry to say there is little information about what happened to them after that. At that same time, the Corsicarian left for other, easier pastures, and they must have traveled a long way because when humanity first ventured out to the stars, most of the nearby planets that had life were devoid of any intelligent life… easy colonies for a while…
Every creative writer must be inventive–even in crafting the most mainstream, realistic story. The setting must be a world in which the characters can live and breathe and interact. These posts are inventive, yes, but encouragement to think through your own work and flesh out your world. Your vision will likely be different, but so it should.