The Minbari Civil War occurred in 2261.
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. 
The civil war ended at the Temple of Varenni, where the opposing leaders were to step into the Starfire Wheel and whichever leader was able to stay within the Wheel before the fire consumed them would be the victorious side of the conflict. Delenn and Shakiri both stepped into the ring, but soon after the Starfire Wheel opened, Shakiri left. Delenn decided to make herself an example to the people of Minbar and decided to stay in the wheel until Neroon climbed into the wheel and removed her. Forsaking his Warrior Caste upbringing, he converted to the Religious Caste soon before being consumed by the Starfire Wheel and dying.
After this, Delenn created a new Grey Council. This one was made of two representatives from the Warrior Caste, two from the Religious Caste, and five from the Worker Caste - whom Delenn believed were best suited to represent the needs of the people. 
|Wars and Conflicts|
|Last Great War First Shadow War Second Shadow War|
|Chilean War World War III War of the Shining Star Dilgar War Canal Wars Earth-Minbari War Earth Alliance Civil War Telepath War Second Earth Alliance Civil War|
|War of 20 Million Deaths 1st Centauri Occupation of Narn Narn-Centauri War 2nd Centauri Occupation of Narn Centauri Wars of Aggression Centauri War of 2262|
|League Wars of 2260 Minbari Civil War Drakh War The Great Trade War|
|Battle of the Scoria Plains Battle of Nu'Shok Battle of Douala Liberation of the African Block Battle of Janos VII Invasion of Ragesh III Raider Attack on Babylon 5 Battle for Epsilon III Operation Sudden Death Thirdspace Invasion "Scout Fleet" Assault on Babylon 5|