Arcadia

Arcadia is a United Nations Space Command colony located in the Procyon system, 11.41 lightyears from Earth. Described as a "tropical paradise", it is apparently a popular destination for tourists, and received many shipments from Harvest. A probable strategic point in the war, the planet is likely to have been glassed after a massive Covenant assault.

Trivia

 * It is set to be a major plot element in Halo Wars, because of its great interest to the Covenant. .The level World of Arcadia, a confirmed level, is likely set on the planet.
 * It may have been named after the actual Arcadia, a region south of Greece in the Peloponnesus.