No Reliable Confirmation of Alleged Iranian Designation of Royal Navy and RAF
Key Facts
There has been no verification that Iran’s Islamic Revolutionary Guard Corps designated the Royal Navy and the Royal Air Force as terrorist organisations, and no evidence was available to support claims that Britain’s Secret Intelligence Service was included on a similar Iranian list. The designation is not presented as a confirmed decision in the absence of an original Iranian statement or confirmation from a reliable open source. The current tensions center on the incident at Britain’s Fairford air base, which took place on 27 September 2026. The British government linked the incident to Iran, while available information does not establish British involvement in US-Israeli attacks on Iran, as stated in the previous draft. London, meanwhile, has taken official measures against Iranian individuals and designated the IRGC a national security threat earlier in the year.
On 17 July 2026, the British government formally designated Iran’s Islamic Revolutionary Guard Corps under the Government Threats Act 2026, alongside the Islamic Movement of Companions of the Right and the Russian military intelligence Volunteer Corps. The law allows the home secretary to designate bodies involved in activities that pose a threat originating from a foreign state if the secretary considers this necessary to protect the United Kingdom’s security or interests. The UK National Security Act 2026 received royal assent on 8 July, bringing the new designation power into force. The government said anyone convicted of offences including expressing support for, or assisting, designated bodies could face up to 14 years in prison. The framework gives London a legal tool to counter what it describes as state-backed threat activity, amid rising tensions with Tehran.
On 12 October, the UK Foreign Office announced the listing of two Iranians for their role in facilitating or participating in hostile activity on behalf of the Iranian regime. The ministry said: “We are also listing two Iranian nationals for their role in facilitating or engaging in hostile activity on behalf of the Iranian regime.” London has linked rising threats to the IRGC and to activity it attributes to Iran inside the United Kingdom, while claims that Tehran designated the Royal Navy and the RAF remain independently unconfirmed. These British measures provide tangible context for the diplomatic dispute, but do not establish the validity of reports of a similar Iranian decision. Available information does not document any change in oil prices or shipping activity as a result of these claims.
The UK Foreign Office said the number of credible, Iran-backed threats to kill or kidnap people in the United Kingdom was at least 15 between 2022 and 2023, before rising to more than 20 in 2025. The Associated Press also quoted British officials as saying national security cases linked to activities by states Britain describes as hostile, including Iran, rose 50% in the six months ended December 2025. These figures point to an increase in security cases that London says are linked to foreign state activity, providing the backdrop to its tougher legal and diplomatic measures. The figures remain attributed to British authorities and officials and are not, in themselves, evidence of the details of each case or of the alleged Iranian designation.
In the Fairford case, the Associated Press reported that British Prime Minister Andy Burnham told lawmakers the government’s assessment was that the incident was highly likely to have been coordinated from Iran and was probably directed by the IRGC. The agency quoted him as saying: “I can confirm our assessment that it was highly likely that the coordination was from Iran, and that the Islamic Revolutionary Guard Corps was most likely directing the operation.” This is a summary of the British assessment of the incident, not independent proof of the circulating claims about an Iranian designation. Police said they found a quantity of petrol in three trucks linked to the five suspects initially detained at the scene, and found no explosives. The investigation details illustrate the nature of the incident that fueled tensions, while the allegations remain attributed to the British authorities that announced them.
British prosecutors charged two 24-year-old British citizens from London under the National Security Act. According to the Associated Press, one is accused of assisting Iran’s intelligence service, while the other is accused of entering a prohibited site for a purpose prejudicial to the United Kingdom. The defendants are Mohammed Ahmed Abdul Karim and Numan Al-Saghir, the agency reported, citing the Crown Prosecution Service. They are due to appear in court again on 20 November 2026. In a separate development related to the base, the US Defense Department said its bombers had left Fairford and been redeployed to their home bases, without establishing any effect on energy prices or shipping.