Sentry Omega
Location:	Flarunium Realm, Milky Way Galaxy Outer Council Space, Milky Way Galaxy Krogan Territory, Milky Way Galaxy Attican Traverse, Milky Way Galaxy New Republic Space, Milky Way Galaxy Dominion Space, Milky Way Galaxy
System(s):	Hoc Grendel
Relay(s):	Hoc Relay
Population:	Constantly shifting - Largely under 400-900
Species:	Prothean Krogan Human Quarian Geth
Affiliation:	Prothean Empire Tuchankan Empire Republic of Rannoch Galactic Dominion Virminian Republic of Sentry Omega
Tier:	Tier VIII
Capital:	Virmire

Sentry Omega is a cluster located in the core of the Attican Traverse. Previously one of the many uncolonized clusters in that region of space, Sentry Omega has had a surprisingly bloody history. Prior to 2196 CE, the cluster was neither owned by the Council, Terminus Systems, Geth, Batarian Hegemony or Systems Alliance, despite the few examples of potential colony worlds. During the Eden Prime War, it was used as the secret base of operations for Saren's Alliance, until their eviction from the cluster after the Battle of Virmire. After the Reaper War, the cluster was quickly targeted by both the Systems Coalition and Republic of Rannoch for colonization, and led to he foundation of the Terra-Rannochian Pact that would be the basis for the Galactic Dominion, solidified after the Treaty of Virmire. By 2252 CE, Sentry Omega had gone from uninhabited, to a bustling centerpiece of civilization. Sentry Omega was so culturally and economically vibrant, that when the Dominion Civil War broke out, Virmire was able to easily declare its independence.

Following the civil war, Sentry Omega continues to enjoy independence, and the Virminian Republic later joined the Unified Republics of the Milky Way.