Protocol four was a military tactic utilized by a Separatist holdout based on the planet Desix which involved deploying droidekas. Between 19 BBY and 18 BBY, a squad of Galactic Empire clone troopers was dispatched to Desix to eliminate the holdout and free Imperial Governor Grotton from captivity. Upon breaching the city's perimeter and destroying the holdout's air strike team and Armored Assault Tank, the squad split its assault. A T-series tactical droid commander recommended using the protocol, to which holdout leader, Governor Tawni Ames, agreed. The droid battalion then sent droidekas into battle, but they were unable to defeat the clone troopers, leading to the holdout and Ames's defeat and Desix's occupation by the Empire.
Protocol four was introduced in "The Solitary Clone," the third episode of the Star Wars: The Bad Batch animated series' second season, which aired on Disney+ on January 11, 2023.
Protocol four was introduced in "The Solitary Clone," the third episode of the Star Wars: The Bad Batch animated series' second season, which aired on Disney+ on January 11, 2023.