From Halopedia, the Halo wiki
During the Battle of Draetheus V in 2554, Eminent Domain was able to outmaneuver Covenant forces in orbit over the moon and offer support by deploying Orbital Drop Shock Troopers' 3rd Platoon to the southern Mirror Flats. The ship was destroyed a short time later, but not before it managed to destroy dozens of Type-25 Spirit dropships.
Eminent domain is the power to take private property for public use by a state.
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