The Hutt underground or Hutt resistance was a Hutt resistance movement formed during the Yuuzhan Vong War by 26 ABY. After the Battle of Nal Hutta, they fought to free Hutt Space of the invaders led by Nas Choka. Booster Terrik supplied them with weapons, although he charged them enough to make it profitable.
Later, after Bana Besadii Diori was sent to negotiate with Leia Organa Solo at Shelter, the Great River made inroads into helping the Hutts acquire non-weapon technology, such as medicine and food. One branch of the underground, the Sisar Runners, was headed by Embra.