In a statement released on Sunday, 1 November, Iran’s Foreign Ministry announced that the Royal Navy, Royal Air Force and MI6 were designated as terrorist and hostile entities, a move described by Xinhua as a direct retaliation against the United Kingdom’s perceived anti‑Iran policies. The decree, which takes effect immediately, was approved by Iran’s Supreme National Security Council in a resolution adopted earlier that day.
The Iranian Ministry said it was responding to what it deemed as a series of hostile acts by the British government over the previous year, including the use of UK bases to support operations that it claims violate the United Nations Charter and international law. Tehran also cited the UK’s designation of the Islamic Revolutionary Guard Corps as a threat to national security as a factor in its decision.
Officials asserted that the move was carried out in accordance with international law and the principle of reciprocity. They warned that the United Kingdom would bear responsibility for any consequences arising from the designation, and reiterated Iran’s determination to safeguard its national security and interests in the face of perceived unfavourable British policies.
While the statement clarified Iran’s position, it did not provide further details on the enforcement mechanisms that may be applied against British assets or personnel. No direct quote is available from Iranian officials in the Xinhua source, and no additional eyewitness accounts have been reported to date.
The designation adds a new layer of tension to already strained Iran–UK relations, a development that could impact diplomatic and military engagement in the region.