Solais V

Solaris V was the home planet of the Solari, where two factions have been at war for fifteen centuries. In 2265, the USS Enterprise-D takes the deaf-mute mediator named Rivas there to lead a delicate peace negotiation. When Sisko is promoted to Captain and wants to tell Kasidy Yates about it, he learns that she is hauling a load of duranium to the planet.[