The Battle of Blackbird was fought in 1903 PD between the Grayson, supported by Manticore, and Masada, supported by Haven, during the Second Grayson-Masadan War. It occurred near Blackbird, a moon in the Yeltsin's Star System. Following the battle, a secret Masadan base on Blackbird was assaulted, leading to the recovery of nineteen Manticoran prisoners of war.