This group exists primarily within the Sonic X continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.
This article's name is conjectural.
Although this article is based on official information, the actual name of the article's subject is pure conjecture.
The Resistance is a group that appears in Sonic X. It was a small group of soldiers who fought the Metarex in order to restore the glory of their now-destroyed planet, Cascade. Molly and Leon are the only named members of the Resistance.
Having fought the Metarex for many years, the Resistance were growing weary. However, Molly decided to keep fighting, which resulted in her death due to engaging Pale Bayleaf's fleet alone.
Eventually the rest of the Resistance were rounded up by the Metarex. They were all consumed by trees which grew around them, killing them.
Since the Resistance fighters were the only survivors of Cascade after the Metarex attacked, their death leaves the Cascadians virtually extinct.