Neelix had visited Sobras before joining USS Voyager, and had a Kazon acquaintance named Tersa there. In 2372, Voyager passed near the planet, and it was decided that Neelix would travel there in an attempt to open talks regarding an alliance between Voyager and the Pommar.
Later, a conference between several Kazon sects, the crew of the USS Voyager, and a Trabe representative was hosted on Sobras. However, the conference was ended prematurely when the Trabe unsuccessfully tried to assassinate the present First Majes. (VOY: "Alliances")