The Belt movement that formally claims Ceres while trying to contain a war it does not fully command.
The Outer Planets Alliance is blamed across the system for the Donnager's destruction, even as figures such as Anderson Dawes deny that its scattered forces possess the ships or technology responsible. On Ceres, its armbands become increasingly visible among young people and its name becomes a banner for both political hope and violent confidence. The station's residents see the destruction of a Martian flagship as proof that the Belt can strike back.
After Earth removes its oversight, the OPA announces that Ceres is now official OPA-held real estate. New security forces conduct hard preemptive peacekeeping, breaking up rallies and protests while riots and curfew orders spread through the station. The move fills the vacuum but makes Ceres more exposed to Martian suspicion, and it does not resolve the dangerous question of who truly destroyed the Canterbury and Donnager.
The OPA is represented by split-circle armbands, crowded political broadcasts, improvised local security, station cells, and the conflicting anger and hope of Belt communities.
The OPA is becoming the de facto political authority on Ceres while remaining unable to control every act carried out in the Belt's name.