The Great Dragon War - "The Chroma Conquest"

Brief History
The Great Dragon War, also referred to colloquially as The Chroma Conflict, was a period of continental war between the Chroma Supremacy, led by the Primordial Chromatic Dragons, and the Presidium Protectorate , led by the Primordial Metallic Dragon , from ATC 520 - EDW 606 on Ordinia.

The Red Dawn - Onesday, New Moon, Sun's Dawn, ATC 520
Although tensions between the Primordial Dragons had been high for an extended period of time, it was not until Sventarnus committed the ultimate betrayal and brutally murdered Aurinax and Vyrgol during the celebration of the creation of the first gold dragonborne in the Capitol. After the murder, Sventarnus and the rest of the Primordial Chromatic Dragons fled the Capitol to rally their forces at Drakenhold, the Capital of the Chroma Supremacy.

Drogon Elves Side With Chroma Supremacy - Fivesday, Mid Moon, Second Seed, ATC 520
A sect of Elves, now referred to as Drogon Elves, sided with the Chroma Supremacy and devoted themselves to the Primordial Chromatic Dragons.