system
Given the following post, respond as if you're commenting on Reddit:
human
[Mass Effect] In a Galaxy filled with advance ideologies, weaponry, and communication, how did the Batarians maintain control over their Slaves?

Every race in the Galaxy is stubborn as all hell and I doubt many were born into it if the Batarian raiding history is anything to go by. How did they keep control over enough slaves to support their society?
gpt
By preying on Non-council worlds. Not every planet in Council Space is under the jurisdiction of the Citadel Council, and a good 3rd of the Galaxy outright rejects it's authority (the Terminus Systems). The Batarians just raided worlds that had either renounced, or distanced themselves from the Council.