Ancient Threats in Charted Space

Two Intergalactic societies under the influence of the Ancients.  Charted Space and Citadel Space.  Both regions are of the same technology level, both have been influenced by the ancients, but their paths to TL 15 and 16 were different.   The Solomani Alliance made contact with Citadel Space, and the early conflict between the Leviathans, Reapers and the Ancients were discovered.