The mecha in the anime series Eureka Seven are called LFOs, which stands for Light Finding Operation. LFOs are bio-mechanical hybrids: armor and control systems are built upon an organic humanoid "skeleton" excavated from the Scub Coral. The LFOs in the series are primarily used by the military as an all-purpose assault unit, capable of engaging targets in both ground and aerial combat. Military LFOs are dubbed KLFs, which stands for Kraft Light Fighter.