War of Wills

The San 'Shyuum Civil War was an internal conflict that arose when some of the San 'Shyuum began to believe that they should enter the Forerunner Dreadnought, a relic which crashed on their homeworld long ago. This was an affront to the other San 'Shyuums' religion, who believed that the Dreadnought shouldn't be touched. The disagreement sparked a bloody civil war. The conflict ended with those who entered the ship (known as Reformers), fleeing away from the world on the Dreadnought, while the others who were defeated (known as Stoics) stayed behind.