Terrestrial Defense Division was a division of Starfleet.
In 2364, prior to stardate 41775, a commander at this division received a mission order about STFL cargo manifest 045-349374 from Captain Jonas Grumby of the USS Minnow. (TNG: "Conspiracy")
This agency was never mentioned in dialog; its name appeared on a mission order.
Template:Branches of Starfleet