Gamma Fleet was a fleet of the Galactic Alliance Defense Force led by Admiral Traest Kre'fey during the Yuuzhan Vong War. It was supposed to participate Operation Trinity at the Bilbringi system. After jumping in-system, Alpha Fleet was supposed to transmit the system's weak spots to them and Beta Fleet. But the Yuuzhan Vong launched the Mabugat kan, which crippled several HoloNet relay stations. Alpha Fleet therefore was unable to send out any transmissions. With strict orders not to jump without the transmission from Alpha, Beta and Gamma Fleet held their positions.