Ironmarch

Iron March was an online forum and website that hosted discussions centered on white nationalist, fascist, and neo-Nazi ideologies. It operated from roughly 2011 to 2017 and was run by an administrator using the moniker Iron March; the operator's real identity was not publicly confirmed. The site functioned as a hub for far-right networks, providing discussion threads, ideological essays, and a means to connect disparate groups and individuals across North America, Europe, and beyond. It helped popularize accelerationist and ethnonationalist strands within online extremist circles and was noted for linking various organizations and activists.

Among its users were members who later formed or joined other extremist groups, including Atomwaffen Division and Vanguard America. Iron March was also described as an incubator for online organizing tactics and for the exchange of propaganda, manuals, and strategies for recruitment and action. The site's prominence was highlighted by researchers and journalists as an example of how online platforms can facilitate coalition-building among distinct groups.

In 2017, a data breach leaked extensive material from Iron March, including user accounts, messages, and group affiliations. The leak led to heightened scrutiny of the site, and Iron March was taken offline. The episode is regarded as a turning point in documenting online extremist networks, illustrating how digital forums can serve as infrastructure for far-right organizing.