Now, don't worry. I don't mean "where did everyone go and why?" but I actually mean "Hey, you know what? I don't know where the planets are and what strategic value they would hold in an interstellar war." The territories are mapped out but the locations of the individual stars and planets are up to interpretation at best.
We're located in the Orion Spur, a small little band of stars stuck between the Sagittarius and Perseus arms. It would be a big project and we have a lot of planets and solar systems to cover, but we've already mapped out solar systems in the past and would just need to say which arm they were located in and roughly where (inner/outer/central region). I think it's plausible, but it'd entail a lot of effort.