Team Nine was a stormtrooper response team made of twelve soldiers that was stationed aboard an Imperial II-class Star Destroyer. When the Rebel astromech droid R2-D2 traveled aboard the Star Destroyer to rescue C-3PO, the droid caused confusion aboard the ship resulting in Team Nine and Team Twelve firing at each other.
Although the response team numbered 12 Imperial stormtroopers, it was referred to as a squad by their angered Imperial II-class Star Destroyer commander. This contradicts Star Wars Super Graphic: A Visual Guide to a Galaxy Far, Far Away, which establishes the quantity of stormtroopers within a squad of the Stormtrooper Corps to be 10.