PINDAR

PINDAR was the code name for a series of highly secret UNSC colony worlds geared for continued survival even if Humanity at large was extinguished, and established between 2539 and 2549 as part of a series of increasingly desperate measures to prolong the Human-Covenant War. Approximately a dozen PINDAR worlds were known to exist at great distances from the core of UEG-controlled space, though only a select few individuals in the UNSC were aware of the existence of more than one world, and their location and existence were wholly concealed from the population at large. PINDAR worlds contributed to the war effort by producing raw materials and component parts for war production elsewhere, such as Barrow, and Reach, which was distributed among shipments from known colonies in order to conceal its source; for the same reason the worlds did not produce materiel themselves.
Extensive networks of TRIPWIRE slipspace sensors provided early warning for unidentified intrusion, while defences included UNSC Navy and Army contingents and autonomous defence platforms and drone defence ships. Substantial measures were undertaken to conceal the true nature of these worlds even from the UNSC personnel who were rotated through the posting. In addition to these defences, surface settlements populated by civilians conscripted into war service supported agriculture, mining and technology research and development. PINDAR worlds were self-sufficient in nearly all respects- civilians stationed here for war service were not permitted to leave of their own volition.
Though Humanity came close to destruction by 2552 (with only one hundred and forty nine colony worlds in existence by December that year), the events of the Great Schism and the Battle of Installation 00 ended the war with the UEG intact. In the event, PINDAR thankfully never fulfilled its role as the final UNSC colonies, though their material contribution to the war effort cannot be understimated. No PINDAR world was ever attacked or discovered by the Covenant. With their civilian populations dispersed and resettled on newer colonies, PINDAR worlds remained secret military installations for decades after the war.
The name was a reference to the house of a man called Pindar, the only structure that survived Alexander the Great's destruction of Thebes.