In 1933, O'Connor received a stolen copy of an SCP memorandum, referring to "an insurgency of chaos against the Foundation", liking that phrase, he then Christened the new group as the "Chaos Insurgency".
The Insurgency is nominally divided in three branches: Logistics (engineers, medics and middle-men), R&D (devoted to investigate the instrumentalization and weaponization of Anomalies) and Military (Combat units).
In 1948, as part of a seemingly routine staged operation, the Insurgency removed several SCP objects from Foundation containment and transported dozens of defecting Foundation researchers to various safe locations. That same day, multiple other unplanned raids of Foundation facilities occurred.
The leadership of the Insurgency was comprised of members of MTF Alpha-1 "Red Right Hand", famed for their loyalty to the O5 Council and the total secrecy of their origins, identities, and operations. The Insurgency leadership was supported by research, security, and retrieval personnel, all taken from Foundation ranks.