Operation: Reclamation was an operation carried out by the 33rd Infantry
Little is known about the goals of the operation, though it is assumed the goal was to find Agent Brian Castavin, and to suppress the CIA backed rebellion.
Members of the 33rd raided The Nest and gathered civilians, as part of the operation, so that they could be extracted to The Gate. However, it is unclear why they did this.
Spec Ops: The Line