The Sarlacc Battalions were a formation within the 41st Elite Legion of the 9th Assault Corps in the Grand Army of the Republic.
In 21 BBY, Sarlacc Battalion A and Sarlacc Battalion B were deployed together as a brigade on Dinlo, led by Jedi General Vaas Ga and Clone Commander Gree. Encountering heavy battle droid opposition, they were extracted by the RAS Fearless.
The overall fighting strength of the brigade consisted of 1152 men, i.e. the muster strength of two GAR battalions; of these ninety-four were killed on Dinlo, and 215 of the survivors were wounded.