Tau Verde IV was a planet in a cul-de-sac of the Galactic Nexus. The nations of Felice and Pelias were located on Tau Verde IV, and fought the Tau Verde Ring war against each other. The war had been roughly equally balanced, with a potential settlement being arranged when the Pelians hired a mercenary group called the Oseran Mercenaries to blockade the wormhole. The war ended when Miles Vorkosigan and his assistants arrived in the system, took over and renamed the mercenary group to The Dendarii Mercenaries, and dictated terms to end it.