Britain’s first duty is to protect its people and its territory. When a foreign state is assessed to have directed hostile activity near a military base in England, the government must consider whether its existing response is strong enough.
The incident near RAF Fairford on 27 September has brought that question into sharp focus. On 12 October, an international statement recognised the United Kingdom’s attribution of Iranian involvement and linked the incident to the Islamic Revolutionary Guard Corps’ willingness to operate abroad through covert networks and proxies. That represents a serious escalation in the government’s assessment. Joint statement on Iran.
There remains an essential distinction between intelligence attribution and criminal proof. Iran denies involvement, and reporting on 12 October said that seven men had been arrested and released on bail, with no charges brought. We should respect that distinction and avoid treating individual suspects as guilty. But a government also has to assess threats before a criminal trial concludes. Associated Press reporting.
My argument is that Britain should be prepared to enter direct military conflict with Iran if that is necessary to stop further attacks. Fairford strengthens the case for doing so. A state cannot expect to direct hostile operations on British territory while assuming that Britain’s response will always stop at condemnation.
Britain is already involved
The argument cannot be separated from Yemen.
On 22 September, the government announced additional defensive military support for Saudi Arabia following renewed Houthi attacks. This includes an RAF Voyager aircraft for air-to-air refuelling, building on existing British air defence equipment and personnel helping protect against missiles and drones. Britain is therefore already assisting partners confronting the Houthis. Ministry of Defence announcement.
Iran’s backing matters. In its August statement to the UN Security Council, the UK explicitly called for Iran to end its longstanding support for the Houthis. Describing them as an Iranian proxy captures that relationship, although it should not imply that every Houthi decision is dictated by Tehran. UK statement at the UN.
This creates a difficult strategic question. How long should Britain help defend against an armed group supported by Iran while accepting that pressure on the state supporting it must remain largely diplomatic?
Action against the Houthis can protect people and disrupt attacks. It cannot, by itself, settle the wider problem of Iranian support for forces that threaten our partners. Fairford adds a further dimension: the government now attributes Iranian involvement in an incident on British soil.
Taken together, these developments justify reconsidering the limits Britain has placed on its own response.
Deterrence requires a credible consequence
Restraint has value when it reduces danger. It becomes harder to defend when an adversary concludes that it can keep escalating at an acceptable cost.
There is a plausible danger that Tehran sees a gap between Britain’s willingness to defend against attacks and its willingness to confront those responsible for enabling them. If that is its calculation, repeated diplomatic protests may reinforce it.
Direct military action would carry substantial risks. Yet refusing to contemplate it also carries risks: further plots, greater pressure on our partners, and a growing expectation that British territory can be threatened without serious consequences.
The case for force rests on changing that calculation. Its purpose should be to prevent further aggression and establish that directing hostile operations against Britain has consequences the Iranian leadership cannot comfortably absorb.
A war must have a defined purpose
Supporting military action does not mean signing a blank cheque.
Before committing British forces, ministers should present Parliament with the strongest evidence they can safely disclose, explain the lawful basis for action, and set out achievable objectives. An intelligence attribution is serious evidence; it does not automatically establish that every possible military response is justified.
The government must also explain why sanctions, prosecutions, diplomatic pressure and defensive measures would be insufficient. Force should be necessary and proportionate, with civilian protection central to its planning.
The objectives should be clear: prevent attacks on British territory, protect British personnel and partners, and reduce the capabilities enabling those threats. Success must be defined in terms that allow a campaign to end.
An invasion or an indefinite attempt to remake Iran would demand a separate argument. Fairford does not provide one.
Take the risks seriously—and take the threat seriously too
Opponents of war will rightly point to the possibility of retaliation, civilian deaths, disruption to energy supplies and a wider regional conflict. Anyone advocating military action owes those objections a serious answer.
But the choice is already more complicated than war or peace. Britain is providing military assistance against Houthi threats, while its government attributes Iranian involvement in hostile activity near Fairford. Our decisions concern the extent and purpose of our involvement in an existing confrontation.
Iranian civilians deserve safety and a future free from conflict. British citizens of Iranian heritage deserve the same security and respect as everyone else. Responsibility belongs to those directing hostile activity, and public debate should keep that distinction clear.
My conclusion is that Britain should now be willing to go to war with Iran where a necessary, lawful and proportionate campaign can prevent further attacks. The government should prepare that option, seek parliamentary backing, and make its conditions unmistakable.
A diplomatic settlement that removes the threat would be preferable. Achieving one may require Tehran to believe that Britain is willing to act.
Fairford should change the argument. Defending our partners against Iran-backed forces while tolerating Iranian-directed threats at home is an increasingly difficult position to sustain. Britain’s willingness to use force must match the seriousness of the danger it says it faces.
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