Rebel troopers came from all walks of life and joined up for many reasons. Some were even Imperial defectors, as imperial officers. Even some clone troopers joined the Rebels. From the moisture farms of Tatooine to the marbled halls of Coruscant, Rebel troopers hoped to shore up the struggling Alliance in any way they could.
From the beginning of the Alliance in 2 BBY and up until the formation of the New Republic in 4 ABY, the Rebel troopers saw their organization transformed. What started out as countless local cells of loosely structured resistance groups, gradually turned into a galactic wide and well-trained infantry force. The infantry forces saw action on many worlds throughout the Galactic Civil War, fighting with and against the native populations.
The Duros were humanoids with smooth blue-green skin, red eyes, liplessmouths, long thin noseless faces and green blood. Olfactory organs beneath their eyes were responsible for their sense of smell. Both females and males were bald, though both genders were easily distinguished. Their large red goggle-like eyes also had slit pupils. Duros females laid eggs as they were descended from ancient reptiles, and like the Neimoidians, they were born in a larval grub stage, but unlike their cousins who left the raising of their young mainly to the state, the Duros took care of their offspring from birth.