There are peculiar parallels between Islamist and far-Right violence – and they’re illustrated vividly by the banned neo-Nazi organisation, National Action. On Tuesday, four serving members of the Army were arrested under anti-terror laws on suspicion of being members. A fifth person – a civilian – was also arrested on the same charge.

The group’s call for a “white jihad” and imitation of jihadist organisations’ recruiting and training tactics show the extreme Right’s increasingly intertwined relationship with Islamist extremism. In its preparation for a race war that is perceived as inevitable, National Action even modelled its glossy propaganda materials and boot camps for recruits after those of Isil and showed its members jihadist videos for inspiration.

The deadly vehicle attacks in Charlottesville and Barcelona that occurred last month were another tragic reminder of a broader convergence of the tactics, strategies and goals of the two diametrically opposed extremes. While the Barcelona attack was still unfolding, both Islamist and far-Right online users called for a war between Muslims and non-Muslims: Islamist extremist Telegram channels were celebrating the attack as another milestone to push back against the “international coalition created to kill Muslims”.