Several less discussed powers are of interest.
- The Suliban Cabal. They had the reputation of attacking Tandaran ships and colonies to the point that it resulted in innocent Suliban being interned. They also managed to be engaged in a conflict with the Tholians (who themselves managed to take out a Vulcan combat cruiser) and were in conflict with the Klingons. And originally the Suliban were supposed to be encountered by Voyager in the Delta Quadrant before they were placed on Enterprise instead.
Since we never knew where exactly their homeworld was or how it became uninhabitable, it would be interesting if it was around or on the Beta/Delta Quadrant border.
- Nausicaans – for all the critiques that the Klingons are too macho to be in space, it should go double for the Nausicaans. They seem to be everywhere and yet it’s a mystery as to how that is possible. At least the Klingons are rooted in imperial conquest and thus have a drive to head to the stars, and are noted to have scientists and lawyers. What motivated the Nausicaans?
- Enolians- how do you run a prison planet and have so many falsely detained prisoners when there is so much obvious space crime going on? The Klingons seem to have a fairer legal system. Do the Orion and Rigelian crime syndicates not operate in this sector? And how did the Vulcans not have influence over the Enolians, considering how they managed to reign in crime and corruption on Aragon and Mazar.
- Satarrans – managing to wipe the minds of the crew of the Federation flagship to wipe out their enemy the Lysians, who used lasers. Definitely a lot of questions here, considering that the Orions and Ferengi exist and would sell them weapons.
- Hunters – they hunt down Tosk’s species and seem to have avoided being absorbed into the Dominion. And if they are a part of the Dominion, they surely weren’t a part of the fighting.
They are another one. They are 200 – 300 years ahead technology wise during Enterprise. By TNG, the Vissians should have the equivalent of 27th century Federation tech and be experimenting with timeships. And in the 29th century, the Vissians should have 32nd century Federation tech in the form of programmable matter and transporter comms badges. Its kind of strange that they were never seen or referenced again in universe, particularly in DIS, since first contact was only a century prior.
Does the saying have to originate during the Earth-Romulan War? There was a period where the Romulans once again withdrew into its borders after the Tomed Incident in 2311 to attend to more urgent matters. The Breen would count as such “urgent matters” and could be where the saying came from.
- The Suliban Cabal. They had the reputation of attacking Tandaran ships and colonies to the point that it resulted in innocent Suliban being interned. They also managed to be engaged in a conflict with the Tholians (who themselves managed to take out a Vulcan combat cruiser) and were in conflict with the Klingons. And originally the Suliban were supposed to be encountered by Voyager in the Delta Quadrant before they were placed on Enterprise instead.
Since we never knew where exactly their homeworld was or how it became uninhabitable, it would be interesting if it was around or on the Beta/Delta Quadrant border.
- Nausicaans – for all the critiques that the Klingons are too macho to be in space, it should go double for the Nausicaans. They seem to be everywhere and yet it’s a mystery as to how that is possible. At least the Klingons are rooted in imperial conquest and thus have a drive to head to the stars, and are noted to have scientists and lawyers. What motivated the Nausicaans?
- Enolians- how do you run a prison planet and have so many falsely detained prisoners when there is so much obvious space crime going on? The Klingons seem to have a fairer legal system. Do the Orion and Rigelian crime syndicates not operate in this sector? And how did the Vulcans not have influence over the Enolians, considering how they managed to reign in crime and corruption on Aragon and Mazar.
- Satarrans – managing to wipe the minds of the crew of the Federation flagship to wipe out their enemy the Lysians, who used lasers. Definitely a lot of questions here, considering that the Orions and Ferengi exist and would sell them weapons.
- Hunters – they hunt down Tosk’s species and seem to have avoided being absorbed into the Dominion. And if they are a part of the Dominion, they surely weren’t a part of the fighting.
Another one would be the Vissians. Met by Archer's Enterprise in the 22nd century, their home planet was only 25 light years from where they met, so for 24th century standards they would have been very close to the Federation (if not actually surrounded by it). Highly advanced too, their technology was superior to the 24th century Federation in at least a few aspects. They seemed quite peaceful too, it's just that first contact was screwed up.
They are another one. They are 200 – 300 years ahead technology wise during Enterprise. By TNG, the Vissians should have the equivalent of 27th century Federation tech and be experimenting with timeships. And in the 29th century, the Vissians should have 32nd century Federation tech in the form of programmable matter and transporter comms badges. Its kind of strange that they were never seen or referenced again in universe, particularly in DIS, since first contact was only a century prior.
Though we saw & heard more about them on DS9, I still think they’re closer to Romulan territory. That old Romulan saying about ‘never turning your back on a Breen’ I think comes from an ancient rivalry or betrayal, maybe from during the Earth-Romulan War — that could help explain how the upstart humans defeated a near 2000 year spacefaring race.
Does the saying have to originate during the Earth-Romulan War? There was a period where the Romulans once again withdrew into its borders after the Tomed Incident in 2311 to attend to more urgent matters. The Breen would count as such “urgent matters” and could be where the saying came from.