The Y-wing is a workhorse starfighter has been in use since the Clone Wars. Used for dogfights and for bombing runs against capital ships and ground targets, Y-wings are often overshadowed by newer models such as the X-wing and the A-wing. But the Y-wing's historical importance is remarkable, and it has reliably served multiple generations of star pilots.
The Rebel Alliance's starfighter corps was one of its greatest assets. There were nearly as many stories as there were pilots: Rebel starfighters were flown by Imperial defectors, reformed mercenaries, adventure-seeking farmboys, and daredevils who only truly felt alive in a cockpit. Regardless of their backgrounds, Rebel pilots learned to work together, relying on their wingmen as well as their training in countless battles against the Empire.
The Rebel Alliance stood bravely against the evil of the Galactic Empire, never backing down despite overwhelming odds. Formed from resistance movements that arose during the Clone Wars, the Rebellion worked in secret for decades to overthrow the Emperor and restore democracy to the galaxy. Eventually, armed with the firepower of ships like the X-wing and A-wing, and the leadership of figures including Princess Leia and Admiral Ackbar, the Rebel Alliance triumphed over the Empire at the Battle of Endor.
Some time after abandoning Dantooine, Alliance High Command transferred operations to a new headquarters on the jungle moon of Yavin 4. There, stone temples built by a now-vanished species have been transformed into hangars, barracks and a command center. From Base One, as the Massassi site is known, rebel leaders direct the fight against the Empire.
Threece is the chief of the astromech pool at the Massassi base, where she ensures the Alliance’s technology is kept up to date and in prime condition. Threece has her programming quirks: she’s vain, argumentative and inordinately proud of her overclocked Intellex V processor. But her talent for organization is highly valued by the rebels.