Covenant Civil War
From Halopedia, the Halo wiki
This war started when the Covenant Elites started to notice that the High Prophets started showing favoritism to the Brutes. Like when a Brute killed an Elite the Hierarchs forgot it about it. The Covenant was split into two groups. The Loyalists which consisted of the Prophets,Brutes,Jackals and the Drones. The other group is called the Separitists. Consisting of the Covenant Elite,Grunt and Hunters. This war may have caused an alliance between the Covenant Separitists and the UNSC.
