The harmonic defender is a type of Borg starship used by the collective as a frigate. This Borg ship has a special weapon that charges the special weapons of other allied ships or captured warships. (TNG video game: Armada II)

Vessels of this class were first observed by the Federation during the Regula Badlands crisis of 2377, with multiple vessels of this class partaking in the defense of both Transwarp Portal's. Classified as a Frigate vessel, the ship was equipped with Borg Disruptor arrays, as well as a Gravimetric Torpedo launcher. In addition to its standard weapon arrays, the Harmonic Defender was equipped with a Special Energy Recharger, allowing it to emit a wave of energy that would quickly recharge the special energy of nearby Borg ships.

Known Harmonic DefendersEdit

HD047-08054 HD047-08450 HD047-10564 HD047-15145 HD047-16054 HD047-16458 HD047-47850 HD047-48084 HD047-48469 HD047-48486 HD047-68405 HD047-69696

HD047-78456 HD047-78466 HD047-80584 HD047-84015 HD047-84055 HD047-84264 HD047-89416 HD047-94535 HD047-96569 HD047-98259 HD047-98741 HD047-99456

Borg starship classes
	assembler • assimilator • collector • colony ship • command ship • cube • detector • diamond • fusion cube • harbinger • harmonic defender • hypercube • interceptor • obelisk • pyramid • rectangle • scout • sphere • tactical cube • tactical fusion cube • wedge • workbee