UK Intelligence Chief: Iran's Escalating Threats Target Military Bases, Exceeding Terrorism

Iran's involvement in sabotage efforts against UK military bases has significantly escalated, with Tehran orchestrating multiple plots, according to a stark warning from the head of the UK's domestic intelligence service. Ken McCallum, the director general of MI5, revealed on Tuesday that the level of state-backed threats against the UK now surpasses terrorism and extremist activity. "Over the last 12 months, our Iran-linked operations have led to more than 50 arrests in the UK," he stated. "The other major shift this year has been Iranian ambitions to come at harder targets, like military sites."

This warning follows a suspected plot against RAF Fairford, a base used by US bombers for strikes on Iran since February. British Prime Minister Andy Burnham indicated that Tehran was "highly likely" behind the incident, which prompted a security alert and led to US President Donald Trump withdrawing planes from the base. Seven individuals were arrested in connection with this plot, with two more suspects apprehended last week at RAF Molesworth in Cambridgeshire, a site known for its use by US intelligence agencies.

Mr. McCallum cautioned that an even greater threat may exist elsewhere, suggesting the potential spread of more "aggressive and sophisticated" tactics to the UK. He noted that the IRGC (Islamic Revolutionary Guard Corps) possesses considerable experience in employing conventional and hybrid technologies in countries closer to Iran's homeland. Iran has previously been linked to attempted attacks at UK bases in Diego Garcia, located in the Indian Ocean, and Akrotiri in Cyprus.

The UK has prosecuted numerous individuals for carrying out attacks on Jewish sites and targeting dissidents active in London and other parts of the UK. Mr. McCallum's previous national security update reported 15 active plots disrupted within the UK, and his latest annual report indicates that all state threats, including those from Russia and China, have quadrupled. He highlighted interconnected financial systems, energy grids, supply chains, and manufacturing bases as key vulnerabilities susceptible to disruption and coercion by foreign actors, noting these systems were designed for maximum efficiency in simpler times.

Kaja Kallas, the EU's foreign affairs minister, expressed solidarity with the British government, stating, "UK has now concluded that Iran’s Revolutionary Guard was almost certainly behind the threat to Fairford airbase." She added, "Iran’s campaign of intimidation and chaos extends well beyond the Middle East." The EU has designated the Revolutionary Guard as a terrorist organization and sanctioned Iranian officials for undermining freedom of navigation and human rights violations, affirming their firm support for the UK as a close partner.