Operation: PHALANX

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Operation: ABLE SENTRY[1]

Operation: PHALANX


Human-Covenant War[2]


Between 2526 and 2552[2]


Circinius IV, Circinius system[2]


Civilians evacuated from Circinius IV[2]


Operation: PHALANX was an operation of the United Nations Space Command on Circinius IV during the Human-Covenant War at some point between 2526 and 2552. The operation saw the evacuation of civilians and observation of Covenant invasion patterns on the planet, utilizing intelligence gained from Operation: ABLE SENTRY's UNSC Marine force reconnaissance units. At least one Spartan-IIJohn-117—participated in the operation.[2]


In Halo 4: Forward Unto Dawn, John-117 tells the survivors of Hastati Squad that they are the only survivors on the planet.[3] As the film is set during the Covenant's initial attack on Circinius IV, the presence of other survivors afterward ostensibly creates a contradiction. However, it can be assumed that Blue Team was operating on limited information at the time, or that the other survivors were only discovered later.

List of appearances[edit]


  1. ^ Halo 5: Guardians Limited Edition, Dossier files - Edward Buck
  2. ^ a b c d e Halo 5: Guardians Limited Edition, Dossier files - John-117
  3. ^ Halo 4: Forward Unto Dawn (John-117: "You're the only survivors." Michael Sullivan: "In the school?" John-117: "On the planet.")