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Sir Keir Starmer has put his cupboard on alert for a attainable US assault on Iran, as ministers mentioned working with American forces within the occasion that Tehran threatened UK belongings within the Center East.
Simply 24 hours after insisting Donald Trump had given no indication he was about to “become involved” within the battle between Israel and Iran, the prime minister and his cupboard reviewed how Britain may reply within the occasion of a significant escalation.
UK officers mentioned the scenario was “grave and unstable”, whereas Starmer’s workforce mentioned whether or not the president may search to strike Iran’s nuclear services from a joint US-UK air base at Diego Garcia within the Indian Ocean.
The attainable use of this base for US air strikes on Iran by B2 stealth bombers would draw Britain nearer to the battle. One UK official mentioned there was not a transparent “sure or no” reply as to if Washington must search approval from Britain to make use of the bottom to launch an assault.
Britain has up to now stayed out of the Israel-Iran battle and is decided to not do something that would result in the closure of its embassy in Tehran, a key western diplomatic put up within the Center East.
However Starmer on Wednesday mentioned with ministers and army chiefs how Britain may reply if Tehran “instantly or not directly threatened UK belongings within the area”, mentioned one individual briefed on the talks.
At a gathering of a Whitehall emergency committee often known as Cobra, additionally they reviewed the potential for a US assault on Iran, in accordance with officers briefed on the talks. Others who participated included intelligence bosses and US ambassador Lord Peter Mandelson.
A Downing Road spokeswoman mentioned after the committee assembly: “Ministers had been up to date on efforts to assist British nationals within the area and shield regional safety, in addition to ongoing diplomatic efforts.”
A spokesperson for Lord Richard Hermer, attorney-general, declined to touch upon stories in The Spectator that he had warned that Britain’s participation in a US assault on Iran could possibly be unlawful and that UK forces might solely be concerned in defensive motion.
However one individual briefed on the matter mentioned: “If our belongings are threatened, then we now have a proper to self-defence, with or with out the Individuals. However clearly, in that case, we’d need to work with the Individuals given their superior energy towards the Iranian risk.”
Whereas Starmer has repeatedly emphasised Israel’s proper to defend itself and has mentioned Iran can’t be allowed to develop a nuclear weapon, he has stopped in need of saying he would assist US involvement within the Israel-Iran battle.
He has continued to name for “de-escalation” of the Israel-Iran battle — the official motive why Britain has not provided any assist for the Jewish state in defending itself from air assaults directed by Tehran.
At a G7 summit in Canada on Tuesday, Starmer mentioned there was “nothing” Trump had said “that implies he’s about to become involved on this battle”.
However British officers subsequently admitted that Trump was unlikely to share his true pondering over dinner with western leaders — and that the White Home’s strategy to the disaster was an “iterative course of”.

Israel’s ambassador in London on Tuesday mentioned defensive assist from the UK had not been mentioned or requested.
This contrasts with how UK Royal Air Pressure fighter jets helped shoot down drones fired by Iran at Israel in April final yr. RAF plane additionally supplied help throughout a missile assault by Tehran on Israel final October.
The UK additionally helped the US final yr in army strikes towards Iran-backed Houthi rebels in Yemen.
Any US assault on Iran might doubtlessly focus initially on the closely bolstered Fordow nuclear web site, which Israel lacks the bombs to destroy.
US “bunker busting” bombs able to penetrating Fordow have to be launched from American B2 stealth bombers, and Washington positioned a minimum of six B2-As at Diego Garcia in March because it elevated strain on Tehran to agree a nuclear deal.

The UK final month signed a £3.4bn deal at hand sovereignty of the Chagos Islands to Mauritius, whereas retaining a 99-year lease on the air base at Diego Garcia, the most important of the islands.
Consultants mentioned the US might launch B2 assaults from a house base in Missouri however the extra distance and refuelling wants can be an added complication to any mission.
A UK authorities spokesperson mentioned they might “not touch upon hypothetical operations”.
In the meantime members of the family of British embassy and consulate employees in Tel Aviv and Jerusalem “have been quickly withdrawn as a precautionary measure”, the International, Commonwealth and Improvement Workplace mentioned.
That call stands in distinction to the FCDO’s present recommendation to UK nationals in Israel, who’ve been invited to register themselves with the British embassy or consulate however haven’t been advised to go away the nation.

British officers mentioned the variety of individuals registering for recommendation and different consular assist was “within the low hundreds”, a lot of them twin UK-Israeli nationals.
The FCDO has issued recommendation that it’s nonetheless attainable to go away utilizing industrial land routes by way of Egypt or Jordan, however has not advisable that UK nationals attempt to exit Israel.
“Our key message to British nationals is to observe the recommendation of native authorities and keep near shelter and to register their presence with the FCDO,” a Quantity 10 spokesperson mentioned.