Galgalia

Galgalia was a planet in an unknown star system. Early during the Human-Covenant War the UNSC Daedalus crashed on the surface of the planet. The wreckage of the Daedalus was later scavenged by the UNSC.

Trivia
Galgalia was only mentioned in a brief promotional video for the M12 Force Application Vehicle's guest appearance in the third-party racing game Forza Motorsport 4, therefore, its status as canon is yet undetermined.