Javda Tawas was a member of the stormtrooper corps, fighting for the majority of the Galactic Civil War under the command of General Brenn Tantor.
Following his refusal of an order to execute non-combatants, Tantor was incarcerated on Kalaan. Gana Lant, a fellow stormtrooper, persuaded Tawas and eight other stormtroopers who had fought under Tantor to choose loyalty to the man who had led them through countless battles over allegiance to the Galactic Empire, which had betrayed him.
In a monumental misjudgment, Grand General Malcor Brashin assigned them to guard Tantor's outdoor prison cell. Lant freed Tantor and revealed the squad's unwavering support. After liberating Tantor, the stormtroopers commandeered the TR-MB prototype and launched an assault on the prison, successfully rescuing Luke Skywalker. The group journeyed through Kalaan's canyons, gathering assistance from the Kalaanite resistance until they reached a Rebel base established by Tyr Taskeen. Subsequently, they were transported to Taskeen's fleet, where it is presumed they were briefly detained alongside their general. Upon their release, it is highly probable that they resumed their service to the Rebellion as infantry under the leadership of Tantor.