A planet in the Gamma Quadrant where renegade Jem'Hadar tried to restore an ancient Iconian gateway in the Deep Space Nine episode To the Death.
Vandros IV is a Gamma Quadrant world holding the ruins of an Iconian outpost, complete with a gateway able to send troops across vast distances in an instant. It appears in To the Death (2372).
After raiders damage Deep Space Nine, the Defiant pursues them and rescues the Vorta Weyoun and a Jem'Hadar unit. Weyoun explains that the attackers are Jem'Hadar who have rejected the Founders and are close to repairing the gateway, which would make them almost unbeatable.
Sisko agrees to a joint assault. Because a dampening field at the site disables energy weapons, the two crews attack on foot with blades. They fight their way in and destroy the gateway. The Jem'Hadar First Omet'iklan then kills Weyoun for doubting his men's loyalty.