During the Black Fleet Crisis, the Fifth Battle Group had a squadron of RZ-1 A-wing interceptors called Blackfire Flight. As a component of the New Republic Fifth Fleet, this squadron participated in Operation Hammerblow. Their mission involved striking reconnaissance satellites in orbit around a planet controlled by the Galactic Empire. While attacking a satellite, one A-wing was obliterated by a sleeper mine in orbit. In the conflict, this was the sole loss for the New Republic.