The Arctic Freedom Fighters - Sonic the Hedgehog: The Complete Sonic Comic Encyclopedia (2012)

Formed during the First Robotnik War by Guntiver, the Arctic Freedom Fighters were initially a group of activists looking to protect the icy regions of Mobius from coming to harm. However, following an increase in aggression from the Eggman Empire, they joined the Freedom Fighters in taking a more militaristic approach to dealing with Robotnik. This caused a schism within the group, with some members preferring a more diplomatic and pacifistic approach, and others favouring more extreme methods of resistance.  

This split in the Arctic Freedom Fighters would last for many years until the Second Robotnik War, where the team put aside their differences to bring about the end of the conflict once and for all.