Yuri Vorbarra's Civil War was a Barrayaran civil war that began on the night of Yuri's Massacre, when Emperor Yuri ordered the deaths of all other descendants of Yuri's father, Dorca Vorbarra. Not all the targets were killed in the massacre, and in the aftermath, Piotr Vorkosigan and Xav Vorbarra, half-brother of Yuri, put their troops behind Ezar Vorbarra, then a General in the Green Army Regiment. The civil war lasted for two years. It resulted in the Dismemberment of Mad Emperor Yuri and put Ezar on the throne.