The Sangheili Uprising, also known as 'Wattinr's Rebellion, was an large rebellion instigated by Isna 'Wattinr against the current Sangheili government under the delusion that a corrupted Arbiter Thel 'Vadum had started the Great Schism while under the influence of the humans, leaving the San'Shyuum to be defended be the inferior but loyal Jiralhanae. Isna Wattinr managed to gather ninty five thousand Sangheili warriors under his command and established several bases across Sangheili controlled space and conducted hit-and-run attacks against Sangheili freighters that were heading towards the Sol System as per the Spring Directive.