Resistance (IDW)

The Resistance is a group mentioned in the Sonic the Hedgehog comic series published by IDW Publishing. Commandeered by Knuckles the Echidna, it is a rag-tag freedom fighting organization that was created to oppose the Eggman Empire.

Past
The Resistance was formed by Sonic's friends and allies to reclaim the world, which Dr. Eggman conquered most of after capturing Sonic. Knuckles the Echidna ultimately became the Resistance's commander, although it was Amy Rose who kept the group organized. Shortly after the war with Eggman began, the Resistance received the ciphers for the Wisps' language from Tails (who went solo afterward). With the ciphers, the Resistance enlisted the aid of the Wisps, whom they would sent into enemy territories for when the Resistance's troops arrived so the soldiers could pick them up and use them.

At various points during the war, Resistance units would report being aided by a mysterious soldier who came to be known as the "legendary Guardian Angel". Although she was able to turn the tide of battle, she never joined the Resistance's army.

After warring with the Eggman Empire for six months, the Resistance freed Sonic, and with his help and new allies, they were able to defeat Eggman (who disappeared in the aftermath) and break the Eggman Empire's control over the world.

After the war, many Resistance members left the group, including Sonic. Those that remained set out to clean up after the war. With this shift in focus, Knuckles' new duties as commander came to involve things like scheduling and inventory, stuff that did not sit well with him. Meanwhile, the task of rebuilding the world proved more monumental than expected: not only were the leftover Badniks from Eggman's global army everywhere, but they were now randomly attacking civilians since Eggman was no longer there to lead them. Seeking to finish the fight, the Resistance began working from a centralized, organized position in order to be more effective while combating the rogue Badnik gangs.

Fallout
After hearing about Sonic's succesful dealings with the Badnik gangs, who were becoming organized and dangerous, Amy went to recruit him for the Resistance's mission. However, Sonic, who was on his own Badnik-related mission, turned down Amy's invitation. Accepting Sonic's choice, Amy returned to the Resistance. Meanwhile, Knuckles went to investigate why the shipment of Wispons from a town had dried up, eventually receiving help from Sonic along the way. Together, the two heroes stopped Rough and Tumble, who had been hording the Wispons for themselves.

The Fate of Dr. Eggman
Meeting with Sonic and Tails in Resistance HQ, Knuckles and Amy learned from Sonic that Neo Metal Sonic was the ringleader behind the recent organized Badnik attacks. As it turned out, the robot had taken over as leader of the Eggman Empire and was currently trying to conquer the world for Dr. Eggman with an unknown plan. In an effort to undermine Neo Metal Sonic's scheme, Knuckles and Amy decided to help Sonic and Tails search for any old plans that could tell what Neo Metal Sonic was up to. Amy in particular put out a call to all Resistance members to gather additional help for the search. It was not long after that Sonic and Silver discovered Neo Metal Sonic's plans, prompting them to contact Resistance HQ and tell Knuckles and Amy to call in everyone to stop Neo Metal Sonic's plans.

Tactics
During the war to take back the planet, the Resistance would send Wisps into enemy areas in Deployment Pods so they could be picked up by the Resistance's troops when they could enter said areas.

Trivia

 * The Resistance is based on the group of the same name that appears in Sonic Forces.