The movement was co-founded by Michael 'Mike' Brian Vanderboegh from Alabama, a member of the Oath Keepers, a group with whom the Three Percenters remain loosely allied and are often compared. In June 2021, six men associated with the group were indicted for conspiracy, and Canada declared the group a terrorist entity. Other Three Percenters remain as independent local groups.
On February 21, 2021, their leadership dissolved the American national group in response to the 2021 United States Capitol attack, condemning the violence. One Canadian expert, Maxime Fiset, a former neo-Nazi who works with the Centre for the Prevention of Radicalization Leading to Violence, considers the group the 'most dangerous' extremist group in Canada. The group's name derives from the erroneous claim that 'the active forces in the field against the King's tyranny never amounted to more than 3% of the colonists' during the American Revolution.
The group advocates gun ownership rights and resistance to the U.S. The Three Percenters, also styled 3 Percenters, 3%ers and III%ers, are an American and Canadian far-right, anti-government militia movement.