The army is using counter-terrorism strategy to spot signs of radicalisation within the ranks and prevent recruitment by extremists such as neo-Nazi groups.
Police Scotland say downloading material from the fascist website "could constitute a criminal offence".
YouTube provides a network for far-right extremists such as Scot Colin Robertson, aka Millennial Woes, to promote white nationalism and radicalise people, according to a new report.
A new neo-Nazi organisation called System Resistance Network is recruiting in Scotland. Campaigners say it is run by a banned terrorist group.