The Minbari Civil War occurred in 2261. The events that lead up to the civil war occurred over many years, with the major tipping point before the civil war broke out being the dissolution of the Grey Council by Delenn in mid-2260. The war was mainly waged between the Warrior Caste and the Religious Caste. The Worker Caste was caught in the middle. The war was also the first time in a thousand years that the Minbari fought amongst each other on a large scale.