Eu suponho que você se refere aos 2261 editos de Valen pós-guerra da Guerra Civil.
De acordo com o artigo wikia , eles começaram por negação de recursos (indiretamente causando a morte) e terminou com bombardeios. Com matança direta no meio. Então, a escalada superou a lei.
By 2261 the peace between the Religious and Warrior castes finally broke. In some major cities and communities, the warriors no longer wished to lend aid and support to their Religious Caste neighbors. The warriors had apparently stolen from them and destroyed a great number of resources belonging to the Religious Caste, leaving whole populations of priests to fend for themselves. Some of those displaced were forced to journey to an adjoining population center to find food and supplies, and to meet with others of their brethren. Many of these refugees died of exposure before reaching such places.
The situation on Minbar soon turned to outright violence and war. It was because of this that Delenn decided to return home to organize her caste and possibly mediate the conflict. She met with Neroon, much to the chagrin of others in her caste, to resolve the situation peacefully for he has the ear of Shakiri - a prominent leader in the Warrior Caste.
Delenn soon convinced Neroon to help her end the war between the castes. At her urging Neroon apparently betrays the Religious Caste, and leaves to meet Shakiri - having acquired intelligence that would greatly benefit the Warrior Caste. The Warrior Caste then began its final assault on the strongholds of the Religious Caste. Betrayed and defeated, they huddled together as they were bombed into complete submission. Delenn then had Lennier send a message to the Warrior Caste announcing their surrender.
Terminou com sacrifício pessoal. Enquanto se rendia Delenn invocou um ritual desafiando a cabeça da casta Warrior, provando que ele era indigno e efetivamente acabando com todos os conflitos.
Delenn interrupted Shakiri to invoke the ancient tradition of sacrificial rites to prove the worthiness of leaders - as she and Neroon had earlier planned. She challenged Shakiri to step into the Starfire Wheel and die for his Caste. At first he refused but then chose to join her in the circle. Unable to stand the energy of the Wheel, Shakiri leaped out of the energy field - proving that he would not die for his caste and was unworthy. Despite having told Neroon that she would leave the energy field after Shakiri did, Delenn had chosen to stay in to prove herself and set an example for all Minbari. But Neroon, not wanting to see her die, and finally realizing that the calling of his heart was religious, not warrior, stepped into the Wheel. Picking up Delenn and handing her to Lennier, he stayed in the Wheel. He proclaimed the true calling of his heart to the Minbari, and implored the people to listen to Delenn. A few seconds later the Wheel reached its full and lethal energy, incinerating Neroon.
A few days later, still suffering from the effects of the Wheel, Delenn formed a new Grey Council.