Full Breakdown
UK Proscribes Iran’s Islamic Revolutionary Guard Corps as Terrorist Organisation
7/13/2026, 8:32:15 PM
Designation of the IRGC and Allied Groups
On 13 July 2026 the United Kingdom formally listed Iran’s Islamic Revolutionary Guard Corps (IRGC) as a terrorist organisation under the newly-enacted National Security (State Threats) Act. The designation also applied to the Islamic Movement of Companions of the Right (IMCR) and the Volunteer Corps of Russia’s GRU. The move makes it a criminal offence to support, assist, or receive material benefit from any of these bodies, with penalties of up to 14 years’ imprisonment and unlimited fines.
Background & Context
The decision overturns a prior Conservative-government stance that had declined to proscribe the IRGC, citing the group’s entanglement in Iran’s political system. Labour Prime Minister Keir Starmer pledged to fast-track the National Security (State Threats) Bill in April 2026, creating a classification power comparable to the Terrorism Act 2000 but extending to state-backed entities. The Home Office cited a series of threats on UK soil—including an alleged plot against two Iran International journalists and cyber-attacks—as the immediate trigger.
Key Figures & Groups
- Islamic Revolutionary Guard Corps (IRGC) – an Iranian military branch founded in 1979, estimated to employ ?150,000 personnel with an annual budget of ?£6 billion.
- Islamic Movement of Companions of the Right (IMCR) – Iran-linked group linked to attacks on Britain’s Jewish community.
- Volunteer Corps of the Russian GRU – foreign-military intelligence unit cited for “sabotage and other activity directed against the UK and Europe.”
- Shabana Mahmood – Home Secretary who authorised the designations.
- Angela Eagle – Security Minister who presented the evidence to Parliament.
- Yvette Cooper – Foreign Secretary who summoned Iranian Ambassador Seyed Ali Mousavi to convey the ban.
Data & Statistics
- IRGC personnel: ?150,000
- IRGC annual budget: ?£6 billion
- Maximum penalty for breach of the new offences: 14 years’ imprisonment plus unlimited fines
Official Statements & Responses
The Home Office asserted that “there is sufficient basis to reasonably believe that each of these bodies is engaged in foreign power threat activity, and that each designation is necessary to protect the safety and interests of the United Kingdom.” Security Minister Angela Eagle said British authorities had identified IRGC-linked activity involving threats and intimidation on UK soil. Home Secretary Shabana Mahmood confirmed the statutory requirements had been met after reviewing evidence and advice from operational partners. Foreign Secretary Yvette Cooper formally informed Ambassador Seyed Ali Mousavi of the ban, signalling a heightened diplomatic stance.
Criticism & Opposition
Former Iran International director Roger Macmillan welcomed the decision but warned that proscribing the IRGC “is the floor, not the ceiling.” He argued that the broader network of front charities, community centres, and online influencers must also be targeted, calling for “political will and resources to support the Police and the Security Services in actively going after networks and bringing people to justice.”
Why It Matters
The designation expands the UK’s legal toolkit against “hybrid threats” that blend state sponsorship with terrorist activity, aiming to disrupt fundraising, propaganda, and intimidation operations on British soil. Diplomatic fallout is anticipated; officials have warned the move could trigger the expulsion of the UK ambassador to Tehran, further straining British-Iranian relations.
Conflicting Reports & Gaps
- Earlier Conservative policy rejected proscription, citing the IRGC’s integration into Iran’s governance.
- The United States State Department has denied claims that it asked the UK not to proscribe the IRGC.
- No public detail has been provided on the specific evidence linking the GRU volunteer corps to sabotage activities.
Verbatim Quotes
- “Having carefully considered all the evidence, the home secretary has concluded that there is sufficient basis to reasonably believe that each of these bodies is engaged in foreign power threat activity, and that each designation is necessary to protect the safety and interests of the United Kingdom.” — Home Office statement
- “That is not a decision to celebrate without asking why it took this long, but it is the right one, and I welcome it,” — Roger Macmillan, former director, Iran International
- “Proscribing the IRGC is the floor, not the ceiling. The real fight now is against the network around it: the front charities, the so-called Islamic centers and education centers that launder its ideology into British communities, the online broadcasters and the social media influencers who do Tehran's work for it. None of that stops because one organization has been added to a schedule.” — Roger Macmillan
- “Security Minister Angela Eagle said in a written statement to Parliament that British authorities had identified IRGC-linked activity involving threats and intimidation on UK soil.” — Angela Eagle, Security Minister
- “It is an integral part of the Iranian web of overseas nefarious activity that has brought violence not simply to the Middle East but far further afield.” — Dr Alan Mendoza, Henry Jackson Society
What’s Next
Government officials have indicated that the Home Office will monitor compliance with the new offences and that law-enforcement agencies will receive additional resources to investigate IRGC-linked networks. The potential expulsion of the UK ambassador to Tehran remains a likely diplomatic repercussion.
