Naming of moons underworld, and Nix (a respelling of Nyx), mother of Charon, is the goddess of darkness and the night. Kerberos is a giant three-headed dog who guards the entrance to the underworld. The fifth moon is named for the river Styx that forms the boundary between the worlds of the living and the dead. The name of Eris's moon Dysnomia was suggested by its discoverer Michael E. Brown, who also suggested the name of the dwarf planet. The name has two meanings: in mythology Dysnomia (lawlessness) is the daughter of Eris (chaos). However, the name is also an intentional reference to
Brigade of the Guards Forces (along with the Armoured Corps). The Brigade of Guards was raised in 1949 on the lines of the elite 'Guards' units of the world, particularly, the Coldstream Guards of the British Army's Guards Division. The regiment was raised to implement the government's policy of encouraging Army recruitment from classes and regions which had been under-represented in the forces. Raised as The Guards Brigade, the old system of class composition was replaced with recruitment open to all regions, castes, creeds, and sections of society. Prior to the raising of the Guards, Indian Army infantry regiments derived their name and troop