Defense Force ship was a class of spacecraft used by the United Earth Defense Force for defending Earth in the late 32nd century. (DIS: "People of Earth")
UEDF ships surround USS Discovery over Earth.
In 3189, when the USS Discovery approached Earth, a fleet of these ships surrounded her. They later took part in defending Earth from Wen and his raiders. (DIS: "People of Earth")
The Earth Defense Force ships featured separate nacelles and like several 32nd Century Starfleet vessels had separate nacelles. They were armedwith quantum torpedoes. (DIS: "People of Earth")