The Division in the rule of three was a group of ex military men which threatened the community, ruthless and uncaring of anyone but themselves, this group was extremely dangerous.
Leaders:
The first leader was known as the Colonel, and it was for a time suspected by Adam that Colonel Wayne was the colonel, these suspicions were not proved false or true.
The second leader was Brett, an ex-community man who was accused and proved for murder, before murdering his guards and escaping and taking over the Division.
Destruction:
When the Division attempted to attack the community, the bulk of its forces were destroyed at the bridge, and its headquarters were destroyed, scattering them, Brett rallied what was left to attack the community, and the Division was finally disbanded when they lost.