The Draetheus system was a human-controlled star system. In the post-war years the UNSC established research facilities on the fifth planet. At some point after 2553, the system was attacked by a Covenant splinter-cell.[2]


  • Draetheus I
  • Draetheus II
  • Draetheus III
  • Draetheus IV
  • Draetheus V - A rocky planet home to a UNSC research colony.
    • X50 - A large moon with an Earth-like surface.


  1. Draetheus V is the only known planetary body.
  2. Halo: Spartan Assault Interview, "...the fighting started when a splinter-sect of Covenant ignored the cease-fire of 2552 and attacked UNSC forces..."
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