Harbinger Platoon (ハービンジャー プラトーン Hābinjā puratōn?) is a platoon that appears in the ALDNOAH.ZERO Second Cour television series. It is one of many Kataphrakt platoons of the United Forces of Earth.
Harbinger Platoon is deployed to halt and destroy the Elysium. However even though the three other pilots are frozen along with their Kataphrakts. Inaho Kaizuka arrives, and slowly fights his way to defeat Yacoym. Once he reaches him, Inaho fires directly at the Elysium, destroying it at close range. (AZ: "This Side of Paradise")
- The platoon is named after a horse called, Harbinger, which coincides with the mythological horse names for the United Earth Kataphrakts.