The Haakonian Order is a power in the Delta Quadrant which conquered Talax, Neelix's homeworld in 2355.
The Haakonians and Talaxians fought a decade long, destructive war which ended with the deployment of the metreon cascade weapon on the Talaxian moon of Rinax. The weapon killed all 300,000 inhabitants of Rinax, and Talax surrendered unconditionally to the Haakonian Order. (VOY: "Jetrel")
They were believed to still be in control of Talax in 2378. (VOY: "Homestead")