Merillion

Merillion was a planet just outside the galactic Mid rim, in the Sobara sector. It was the home planet of the Mythonians, a humanoid race of aliens, cold blooded, with scale instead of skin. Originally the base of the Mythonian empire, the empire crumbled when the Jorians attacked,crushing the empire in a swift and brutal war

Jorian Occupation

The Jorians took the planet in 200 ADK, and quickly turned the planet into a Jorian armed colony. Most Jorians, typical of their Xenophobic beliefs, thought of the Mythonians as litte more than animals, although they didn't act out against the natives of the planet.Tensions escalated, because of terrorrist activities by the Kay man Val  and the local rebel forces. After several series of bombings in the capital city, and the execution of the Mythonian Primarch by the Kay man Val, the Galactic Interplanetary Alliance, who'd  stationed an observatory fleet at the edges of the sector jumped in. A full fledged war broke out between the jorian forces on the planet, the alliance, and several months later, the Dar'Jorians.

Summary
Merillion was a jungle planet just outside the Mid-Rim, prone to very humid conditions, and heavy rainfall. Over eighty percent of the planet is covered in rainforest, with ten percent surface area covered in water, and another ten percent that was urbanized by the Mythonians.

The vast majority of Mythonian cities are located in the northern hemisphere, on one of the larger continents, to negate the nearly unbearable humidity. The terrain is mostly flat, with very little mountainous areas', although many cities are slightly higher than sea level.

Mythonian Empire
Merillion was the throne world for the infamous Mythonian empire, that ruled the Sobara sector from 400 BDK, to 200 ADK. Although the Galactic Republic had banned slave trade, Mythonian raiders often hit the eastern quadrant of the Outer rim of the known galaxy. The empire was made up of nearly a dozen vassal planets, and several other allied planets outside of known space. Several planets in the former Unknown Regions were bases for discreet Mythonian reconnisance forces.

It became clear the the Mythonians had both the firepower and the intent to bring the war to the known galaxy.At one point, the empires home fleet was made up of several hundred capital ships. In 186 ADK, the Mythonians' allies, the Sri Vuuk, surrendered unconditionally to the Jorians after the capital city of their homeworld was hit with an orbital bombardment. Sri Vuuk forces were disbanded,, and the Mythonians lost their strongest ally.

Four years later, the Jorians had taken all of the Mythonian territories, except for Merillion itself. The ruler of the empire at that time, known as High Primarch Visess Harch, surrendered to the Jorians after several months of heavy fighting in the Merillion jungles. Mythonians were allowed to keep several planets in the Sobara sector, though they were under heavy supervision by Jorian forces. This eventually lead to the formation of the Myth Ohm Salikh, and the liberation of the planet by Galactic Interplanetary Alliance forces.

Under Alliance Control
After a series of vicious battles between the allied Mythonian and GIA forces and the Jorians, Merillion was liberated from Jorian control. Grateful to the alliance forces, the new Primarch decreed that Merillion was joining the Galactic Interplanetary Alliance.