Originally posted by Jal-18
IIRC, Talania used to be part of the GTVA until the nodes became (naturally) unstable and collapsed.
I made a revamped (but slightly more cluttered) version of the map, and I've come to the conclusion that the Shivans were fools. Instead of going through the Ross 128-Delta Serpentis jump node, where they could have wiped out Earth faster and gained almost immediate access to Beta Aquilae, Antares, Vega, and Ribos-the most node heavy systems on the map- they give you all the time in the world by taking out the backwater 2 or 3 node systems.
edit: fixed a couple of errors
Glad you people like it

Beautiful map you made there Jal-18. And as for the Shivans taking the longest route, well, maybe they just checked the systems that had the biggest subspace-travel left-overs, specifically the ones were the T-V war had been raging on. And as for the Ross 128 thingy, maybe they used some unknown jump node leading from Ross 128 to Ikeya system. Who knows...
And as for the Beta Cygni-Ikeya node, well, althought they do state in the command briefing cutscene that there is only one subspace node out of Ikeya, but in the mission briefing for First Strike they say that the Taranis has been chased from the Beta Cygni system back to the Ikeya system. Propably just a mistake though, but I still included the node anyways.
EDIT: I decided to remove the Beta Cygni-Ikeya node, because it more likely is just a mistake by the mission designer (meant to be Ribos-Ikeya). So there really is just one node out of Ikeya. My deepest apologies, I should have been more careful.