The Legion is a loose collection of warbands that roam the post apocalyptic United States that was formed a few years after the collapse of society. They are extremely hostile and often raid and pillage Coalition settlements, and while the Legion uses the same uniform and is categorized as a single faction by the Coalition, they often fight amongst each-other when not assaulting Coalition borders.

Seven Legion warbands formed into a single fighting force in order to defeat the fortress city of Toronto, but were later pushed back by the defenders. The warbands eventually were destroyed by a Coalition army, but Toronto has still not recovered. Currently, the Legion has not done anything as disastrous as destroying a Coalition city, but they still raid outposts and settlements.