Squad One was a squad composed of B1-series battle droids together with B2-series super battle droids. This unit served Neimoidian General Lok Durd within the Confederacy of Independent Systems' droid army. Its deployment took place in 21 BBY on the planet of Maridun during the Clone Wars, where it engaged in combat against the forces of the Galactic Republic.
The animated television show Star Wars: The Clone Wars' first season, featured Squad One in the fourteenth episode entitled "Defenders of Peace." This episode was initially broadcast on January 23, 2009.