Angel Garrison
An Angel Garrison is a particular unit in which certain angels contribute to. Overall, Archangels manage and oversee the entire heavenly establishment making sure that Heaven stays within certain proper perimeters. Although each and ever angelic unit has its own leaders and supervisors that are separate from Archangels. Zachariah was a direct superior of Castiel, but the garrison to which he belonged to was never mentioned.
Whether or not the Garrison based Units remains in place following the derailment of the Apocalypse is unknown. Castiel reveals that Heaven split into smaller factions following the loss of Michael, and there has been significant disorder. Some angels are now serving as soldiers of Raphael, others are trying to defend Heaven from them, and still others have left the fight altogether.
Known Garrisons
Anna's Garrison.
Members:
Balthazar (Possibly)
and Seven other Unidentified Angels.
Leader(s): Anna (Formerly)
Unit Description: Anna formerly managed this particular garrison making sure that her troops were establishing Heaven's will. But she later fell to Earth and removed her Grace which reconfigured her into a mortal being. However, she later re-gained her Grace and was immediately transformed back into an Angel. Castiel was formerly Uriel's supervisor, but he was later demoted due to his growing attachments for Dean Winchester. According to Castiel, Balthazar fought alongside him during the last angelic war. He was believed to have died, but in fact faked his death and took a number of powerful artifacts from Heaven before going to live on Earth.
Major Episodes:
4.10 Heaven And Hell - Anna Milton is revealed to be a fallen angel, and formerly a leader within the garrison.
4.16 On The Head Of A Pin - Castiel's empathy towards Dean was questioned by his superiors. His superiors temporarily give the angel Uriel command over Castiel.
4.17 It's A Terrible Life - Zachariah reveals himself as Castiel's superior, and suggests that he also responsible for what happens with Dean.
4.20 The Rapture - Castiel engaged in an angel on angel battle with some of his superiors. After this angelic battle, Cass was taken up to Heaven for teachings on obedience, leaving his vessel, Jimmy Novak, unconscious where he was found by Sam and Dean. When he returns, he appears obedient to Heaven's orders. Apparently Cass wanted to warn the Winchesters about Zachariah's plan to allow the Apocalypse to continue, which ultimately resulted in the freeing of Lucifer.
4.21 When The Levee Breaks - Castiel aids in Anna's capture.
5.02 Good God Y'All - Following his rebellion, Castiel is cut off from Heaven and has lost much of his power; he is unable to heal Bobby.
5.13 The Song Remains The Same - Anna manages to escape from Heaven, and goes back in time to prevent Sam's birth, where she gives orders to a younger Uriel on the pretense of being his superior in the future as well as the past. She is eventually destroyed by Michael.
5.18 Point Of No Return - Zachariah is removed from his position, but reinstated on condition that he at last make Dean consent. Dean kills him.
5.22 Swan Song - After Michael to trapped, Castiel returns to Heaven, speculating that chaos will reign in the absence of Heaven's leader.
6.03 The Third Man - Balthazar has left Heaven and his position to explore life on Earth. The angels are at war.
