Hades Gulf

a several-hundred-light-year buffer zone of mostly uninhabited space between the human and ex-Covenant spheres. The Gulf's status as a key crossing region was first discovered during the Covenant War based on AI-processed data on outlying Covenant colonies by means of siphoning Covenant data systems, deep-space probes, as well as outlying super-telescopes. At the time, it was flagged as one of two primary viable avenues for retaliatory strikes into Covenant territory (i.e. ones that did not rely on Covenant slipspace transit). In the post-war era, it has become one of the hotspots for new human colonies as well as Joint-Occupation Zone activity.

Located in the Siakar Expanse