Wes, you should check your YIM for the answer to who they're fighting, but to be succinct:
I was planning for it to be a small red contingent that was staking out the planet, but if that doesn't suit your fancy, we can easily adjust that to something else (which, for the sake of not providing spoilers, I'd want to discuss with you in YIM).
As for the ship's location:
approximately 25 lightyears northwest of Nepleslia. It's the planet northwest of Kxi'ran, sitting between Ayame's Nebula and the other unnamed one.
Does that help?