Britain has taken one of its toughest steps yet against Iran’s network of influence in Europe, linking the Islamic Revolutionary Guards Corps to a wave of antisemitic attacks. For London, this is no longer only a matter of diplomatic pressure on Tehran. It is a direct challenge to national security.
Keir Starmer’s government says units connected to Iran’s security apparatus almost certainly coordinated violent actions against Jewish communities, journalists and Israeli interests in Britain and across Europe. London’s response is a combination of new powers, criminal mechanisms and preparations for terrorism designations.
The shift in Iran’s conduct abroad is dangerous. Tehran has long targeted critics of the regime, dissidents and former officials. But Britain now sees a broader pattern: attacks on Jewish sites, volunteer services, schools, synagogues and symbols of Israeli presence.
According to Daycom’s earlier analysis, Britain’s move matters because it shifts Iranian activity in Europe from the realm of espionage and covert pressure into the category of terrorist threat. London is effectively acknowledging that regime proxies can operate not only in the Middle East, but inside European cities.
At the center of the accusations is a network known as the Islamic Movement of Companions of the Right, or Harakat Ashab al-Yamin al-Islamiyya. It has been linked to a series of attacks between March and May, when Jewish communities in Europe came under new pressure after the war involving the United States, Israel and Iran began.
In Britain, the group claimed responsibility for several attacks, including one on ambulances belonging to a Jewish volunteer emergency service in London. Elsewhere in Europe, explosions struck near Jewish schools and synagogues in Belgium and the Netherlands. For communities already living amid rising antisemitism, this added another layer of fear.
The British assessment is especially alarming because of the alleged method of execution. London believes Iran uses criminal gangs to carry out tasks abroad. That makes the threat less predictable: a state security service or proxy network may not act directly, but instead purchase violence through local criminal environments.
This model is familiar in hybrid operations. The state maintains distance, the executor has a criminal profile, and the political aim is disguised as a local incident. That structure allows regimes to deny involvement while spreading fear far beyond their borders.
In Iran’s case, the concern is not chaotic radicalization, but the logic of state revenge. After military escalation with Israel and the United States, Tehran is looking for ways to respond where a direct strike would be too costly. In that logic, European Jewish communities become not accidental victims, but symbolic targets.
That is especially dangerous because it erases the boundary between a Middle Eastern war and the domestic security of European states. A conflict that begins with missiles, drones and strikes on military sites continues through arson, explosions, threats and attacks on civilian communities in London, Brussels or Amsterdam.
Britain is trying to respond not only with sanctions, but with a new legal framework. The use of the 2026 National Security Act is meant to give the authorities more tools to pursue foreign threats, increase penalties and prevent attacks before they become deadly.
If Parliament approves the designations, they will be among the first uses of the new mechanism. Their meaning reaches beyond the Iranian case. Britain is effectively creating a legal model for confronting state proxies that operate on its territory as terrorist or sabotage structures.
At the same time, London is moving carefully in relation to the IRGC itself. The Guards are already under sanctions, but full terrorist designation in Britain has long been politically sensitive. The problem is that the IRGC is not only a military force; it is part of Iran’s state apparatus, economy and foreign policy.
Yet that complexity is becoming less persuasive as a reason for restraint. When units or proxies linked to the IRGC are suspected of organizing attacks on civilian communities in Europe, diplomatic caution begins to look like weakness. The British government is trying to show that the line of tolerance has moved.
A separate role is assigned to the Quds Force, the elite IRGC unit traditionally responsible for Iran’s network of allies and proxies abroad. For decades, that structure helped Tehran project power in Iraq, Syria, Lebanon, Yemen and beyond. Now, in London’s assessment, its shadow reaches the European continent.
Parallel to Britain’s moves, American prosecutors have been pursuing a related case involving a commander of an Iraqi militia tied to Iran’s network. The charges describe broad plans for attacks on American, Israeli and Jewish targets in Europe, Canada and the United States. That gives the story a transatlantic dimension.
For Jewish communities, the most important issue is not the language of government documents, but the feeling of safety. Attacks on schools, synagogues, volunteer services and community centers have both physical and psychological force. They tell people that a war they see in the news can come to their doors.
This is happening against a backdrop of already heightened antisemitism after the Gaza war and the wider regional escalation that followed. In such an atmosphere, a state-backed or proxy attack becomes especially corrosive because it compounds social tension, radicalization and doubts about whether authorities can protect minorities.
Starmer’s statement that Britain will not become a playground for states seeking to spread fear and violence on its streets is more than a political slogan. It marks a doctrine: a foreign state that uses criminal or proxy networks inside the country must be treated as a threat to sovereignty.
That doctrine does not apply only to Iran. Britain is simultaneously using new tools against a network linked to Russian military intelligence: the so-called Volunteer Corps, which includes remnants of structures connected to the former Wagner Group. London is identifying a shared problem in the conduct of authoritarian states that use indirect violence.
The Iranian and Russian models differ, but they share one logic: act below the threshold of conventional war, preserve deniability, use intermediaries and force democratic states to defend themselves on their own territory. This is no longer the periphery of security. It is becoming its new center.
For Europe, that requires a different kind of preparation. Police, counterintelligence, immigration services, financial monitoring, communities, technology platforms and diplomacy must work as one system. Proxy networks are not stopped by sanctions lists alone. They are stopped when money, contacts, cover, executors and political impunity are cut off.
Britain’s move also sends a signal to allies. If European countries act separately, proxy networks will search for the weakest jurisdictions and move people, money and plans across borders. If the response is coordinated, the room for maneuver narrows. That is why the British decision matters beyond London.
It also matters for Ukraine. Russia’s war has shown that state violence today rarely remains confined to the front. It spreads through disinformation, cyberattacks, sabotage, energy blackmail and criminal networks. The Iranian case in Britain only confirms that authoritarian practices are becoming increasingly dangerous for open societies.
The hardest question for democracies is how to defend themselves without damaging their own principles. Fighting proxies and terrorist networks requires strong powers, but also judicial oversight, precise evidence and protection of civil liberties. Otherwise, the answer to a threat can create new risks of its own.
But the risk of failing to respond is greater. If an attack on a Jewish school, synagogue or volunteer emergency service remains merely a line in criminal statistics, the state misses the political meaning of the violence. That meaning is central: to make communities afraid, governments hesitate and societies accept the idea that someone else’s war has a right to enter their streets.
Britain is trying to show that no such right exists. Its decision on Iranian proxies is not a final answer, but the beginning of a harder phase. The key question now is whether London can turn a political declaration into real deterrence.
The real test is not whether the designations are approved. It is whether Jewish communities, journalists and other potential targets become safer afterward. If they do, Britain will show that a democracy can defend itself against hybrid terror. If not, authoritarian regimes will see Europe not as a protected space, but as a field for further operations.
