When Trivas and Jorell overthrew and killed Mastal, they kept joint command of the Empire. Slowly, through political manipulation and military conquest, they added more planets to the Empire. Soon, they gained the attention of their neighbors who decided to do something about the aggressive Nulvarl. They formed the Areltsi Coalition headed by the planet Areltsi which declared war. While Nulvarl escaped most of the damage, it saw minor destruction when Jorell betrayed Trivas and slaughtered those loyal to him.