Days later, the alliance rolled out Operation Eastern Sentry to reinforce the eastern flank. Earlier this year, NATO had already activated Baltic Sentry to strengthen surveillance and critical-infrastructure protection across the Baltic Sea region. Eastern Sentry functions as a mobile shield—moving fighters, sensors, and ground-based defenses where risk spikes—while Baltic Sentry focuses on maritime and critical-infrastructure security. Mitidieri said the reaction “has not been solely national,” with air defenses and radar alerting reinforced “within the NATO framework,” including Baltic and Eastern Sentry. Drone flights that violate aviation regulations seriously increase the danger to civil aviation, especially in heavily trafficked areas like airports.”Platforms complicate defenses.