Green and Red Rivers

"Green, green rivers meet red, red rivers. Gives me shiv shiv shivers!" is the first line of a song taught to younglings of Sovii.
The green forests of the Merlinsk Orcs once reached the bloodlands of the Krov Orcs. The blood that was shed between the two is sometimes believed to be a myth.
It was very real and the two nearly decimated one another. This was until the Natash, Grey Orcs brought their Knights into the conflict.
Acting as neutral ground, encouraging peace talks with the strength of blade behind said encouragement. Blood still flowed but with purpose, or so it was sold.
Krov Orcs live and breath the way of the Blood Dragon. Honour your ancestors, let all others know who you are and where you come from. Fight with all your fallen brethren at your side as Blood Spirits.
Whereas the Merlinsk Orcs took oaths to the land, promises to let the spirits pass on, to rest. They encouraged Sovii to be one with its forests and tundra's.
During the infighting those of Vikonia took advantage and raided from the West. Ruining towns, tearing down Pyat Temples. Fire and death flooded the Eastern borders of Sovii.
No defence could be mustered due to the internal conflicts. A simple difference in outlooks caused such a painful divide and awful suffering to Soviis own.
The Natash Knights stood between the two and vowed to fight both. If the end of Sovii was to happen then all three would go tother.
The gesture was so massive it united the Orcs of Sovii and their enemies ran from the borders in fear.
Children sing the Green and Red River song as a way of learning to allow one another's rivers to flow to the unified sea.
Sovii Orcs are one people despite where their rivers start.