This Obsidian Entente was a partner alliance set up by members of the Viridian Entente in the black trading sphere. The obsidian Entente only existed for a couple of days because the GOONS demanded that the Obsidian Entente changed colour. They also made a mockery of the situation by announcing they would expand to the green trading sphere. The Obsidian Entente changed to the aqua trading sphere and they changed their name to the Oceanic Entente. This is one of the events that led up to the Green Civil War, and the destruction of the Viridian Entente.