Britain warns of the escalation of the Iranian threat within its territory

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Security concerns are escalating in Britain due to the expansion of Iranian threats within British and European territories, in light of indications that American interests and military installations are being targeted, in conjunction with investigations into arson attacks that targeted Jewish sites, amid accusations of coordination linked to Iran.

These developments come despite the fact that British participation in the war on Iran, which was started by US President Donald Trump and Israeli Prime Minister Benjamin Netanyahu, was limited, while security estimates indicate that Tehran is seeking to expand the scope of confrontation and put pressure on Washington’s allies, according to the British newspaper The Guardian.

The security incident near the British Royal Air Force base, Fairford, in the county of Gloucestershire, raised concerns about the possibility of targeting American military facilities in Europe. The United States decided, about a week after the incident, to withdraw 12 B-1 bombers that were stationed at the base, amid media reports that spoke of fears of a drone attack similar to the attacks witnessed in the war in Ukraine.

The value of one bomber is about $300 million, while Rich Knighton, head of the British Armed Forces, described the withdrawal decision as an operational measure aimed at reducing risks.

The Fairford base is used to deploy long-range American bombers, including B-1 and B-52 aircraft, and sorties were launched from it to carry out attacks against Iran during the spring and early summer, with the approval of former British Prime Minister Keir Starmer.

On September 27, police arrested five men who came from London in three trucks near the base, after one of them called emergency services. They were later released on conditional bail, and two other men were arrested on suspicion of terrorist offences. Prime Minister Andy Burnham said that there were "strong indications" of Iranian involvement in the case, while the Chief of the British Metropolitan Police, Mark Rowley, confirmed that the investigation would see further progress.

British concerns go beyond the Al-Qaeda incident to what security estimates describe as attempts to coordinate attacks targeting the Jewish community and American interests in Britain and Europe.

According to the information provided in the report, the British domestic intelligence agency MI5 believes that the Iranian Revolutionary Guard sought to coordinate and encourage the targeting of Jewish sites, in an escalation that included a series of arson attacks since last March.

In a separate case, two Iranians, Salam Ahmadian and Rahman Salehi, were charged with terrorism on suspicion of planning to target the Jewish community in Manchester using a homemade device containing chlorine powder. The prosecution said that they received instructions from a third party believed to be in Iran, related to preparing an explosive device. The case is scheduled to be heard before the Central Criminal Court in London.

The US authorities also accused Muhammad Baqir Saad Daoud Al-Saadi, who holds dual Iranian and Iraqi citizenship, of coordinating 18 arson attacks and other attacks targeting Jewish and American sites in Britain and Europe during March and April 2026. The authorities said that he is a leader in the Iraqi Hezbollah Brigades supported by the Revolutionary Guard.

The case includes an arson attack targeting a synagogue in London, as well as the burning of four ambulances belonging to the Jewish community north of the capital, in an attack whose damage was estimated at about one million pounds sterling.

Jonathan Hackett, a former US Marine Corps officer and intelligence specialist, believes that the Iranian threats in Britain and Europe are likely to continue, considering that the operations do not only aim to cause material damage, but also seek to influence public opinion and relations between Western countries.

He said that the goal is to "cause a rift between the United States and its allies," making the psychological and political impact of these attacks an essential part of their security repercussions.