Bellicose - a predisposition to war: confrontational, aggressive, militant
Man encounters another race - superior in technology, weapons, tools and a desire to consume. The end result is predictable. But what if we had time, a foreshadow, a buffer? If another civilization stood in the way just long enough to delay the inevitable.
One man could do little against such forces, a slave least of all.
The clock is ticking, and time is running out. Those who witnessed the Xi-Empire's brutality know its only a matter of time.
This is about how far I'm willing to go for a precursor. I mean I don't want to spoil it for you. :)
Let's do a thought exercise:
1. What does it take to cross-light year's of space, to develop the science and tools necessary to traverse the abyss?
2. How long would it take to learn the above, to evolve to a point where the technology, sciences, have reached a sufficient level?
3. Why would they travel the stars? What could they searching for? Is it knowledge? Is it simply reaching out to find others: the need to be assured they are not alone, the thirst to explore?
4. Could they find us? Would we be easy to find? Just how noisy is this little dot of ours? (Yeah, unfortunately we are noisy but radio waves travel slowly)
5. If a race could truly achieve all of this, and eventually find us, and given Earth's resources would not be considered incredibily unique, then perhaps mankind would be more similar to lab mice in a scientific study program. Perhaps the true value of Earth is in the very life it harbours.
6. Taking all of this into consideration, the odds are the true danger does not lie with an evolved race, but with one that has prematurely achieved the above...
Despite where we ended up with this exercise, it is difficult to think like an alien. They are alien to us, after all, and that is the true challenge. ;)