Reach

Located in the Epsilon Eridani star system in FLEETCOM Sector One, Reach was one of the headquarters for the UNSC and the main supplier of military and civilian spacecraft. Located there was the military installation where the Spartans were trained. Originally colonized for its rich titanium deposits, Reach had mines throughout it running thousands of meters deep. HIGHCOM, FLEETCOM and the Marine Corps had headquarters on Reach, as well as many primary ONI bases, which include CASTLE Base. It was the most populated planet after Earth in the UNSC.