Different Groups within Valentine Morgenstern and Alexei De Quincey's armies.

Valentine Morgenstern's

Shadowhunters:

Shadowhunters: Foot soldiers (in groups of five)

Heads of Institutes (HOI): Captains of groups of foot soldiers

Enclave members: Command about ten HOI groups

Alexei De Quincey's:

Werewolves: Foot soldiers (in groups of thirty)

Faeries: Cavalry/Special training

Vampires: Air Support/Spies/Tech stuff

Warlocks: Medical/Communication

Tattoos:

Werewolves have a moon and De Quincey's mark

Vampires have a bat and De Quincey's mark

Faeries have a flower and De Quincey's mark

Warlocks have a book and De Quincey's mark

Officers have a thumbprint

All tattoos are on the wrist.

Backstory:

The two armies have been at it over territory in Idris for years (Idris is split between Downworld and Upworld). But Valentine and Alexei have been experiencing multitudes of deserters over the past three years. When Jace deserts with Clary, Izzy and Alec because Max is killed in a weapons test along with seventeen other eight, nine and ten year olds, they come to the centre country between Downworld and Upworld, Centreland, they realise they've got no IDs, no money, and no way out...