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Sir Keir Starmer has declined to rule out allowing Ukraine to use UK-made Storm Shadow cruise missiles for strikes inside Russia, after President Joe Biden authorised the use of US-supplied long-range weapons.
The UK prime minister said he did not want to get into รขโฌลoperational detailsรขโฌ about the proposal, arguing the only beneficiary would be Russian president Vladimir Putin.
His intervention came amid a flurry of diplomatic activity as British defence secretary John Healey spoke to his American counterpart Lloyd Austin on Sunday and prepared to speak with his Ukrainian opposite number on Monday.
Starmer called on allies to รขโฌลdouble downรขโฌ on support for Kyiv as he arrived at a G20 summit in Rio.
The UK prime minister has faced questions whether Ukraine would receive approval to use the UK-supplied missiles inside Russiaรขโฌs border, after it emerged on Sunday that Biden had greenlit US long-range missiles for such use.
Healey on Monday told MPs he would รขโฌลnot compromise operational securityรขโฌ by commenting on long-range systems. Their comments indicate the UK would not necessarily confirm publicly any change in permissions surrounding the use of Storm Shadows by Ukraine.
Starmer has been pushing Biden to allow the use of the long-range missiles for several months and argued ahead of the G20 summit that the deployment of North Korean troops had marked an escalation in the conflict.
Biden has authorised Kyiv to launch limited strikes into Russiaรขโฌs Kursk region using US-made long-range Atacms, in a major policy shift two months before president-elect Donald Trump re-enters the White House.
Storm Shadow missiles, which have a range of about 250km (150 miles), partly rely on US navigational data and other technology, which has meant their use inside Russia has required sign-off from Washington.ร
On Monday, UK junior defence minister Maria Eagle was asked whether the country would align with the US in permitting Ukraine to use the missile defence systems that Britain has supplied รขโฌลas it sees fit in its own defenceรขโฌ. She replied: รขโฌลAbsolutelyรขโฌ.
She added: รขโฌลWe intend to align with our allies in making sure that Ukraine can make use of the capability that has been offered by those who have committed support to that country in its fight.รขโฌ
Matthew Savill, director of military sciences at the Royal United Services Institute think-tank, said: รขโฌลIt stands to reason that relaxation of the Atacms criteria will similarly lead to some relaxation on both Storm Shadow and [Franceรขโฌs] Scalp.รขโฌ
He added: รขโฌลFrom the Ukrainian perspective it would be preferable for this to take place privately and not be announced until after first use, though the Russians already have some advance warning.รขโฌ
Savill cautioned that, even if Kyiv does get French and British permissioning, it would take time for Ukraineรขโฌs military to put together a cruise missile strike package that could penetrate Russian air defences successfully by using decoys and electronic jamming. As such, รขโฌลwe shouldnรขโฌt expect to immediately see a high volume ofรขโฌโฐ.รขโฌโฐ.รขโฌโฐ.รขโฌโฐstrikesรขโฌ, he added.
There are not believed to be large numbers of Storm Shadows left in allied stocks, and western officials have warned that the lengthy discussions between Nato partners about whether to grant Kyiv permission to use these or equivalent US or French weapons inside Russia has allowed Moscow the ability to move key kit and other targets, such as bomber planes, back outside of their range.
The Kremlin on Monday said the US decision to let Ukraine launch limited strikes inside Russia with Atacms marked a รขโฌลnew turn of escalationรขโฌ in the nearly three-year conflict, and said Moscow would react รขโฌลappropriatelyรขโฌ.
Dmitry Peskov, the Russian presidentรขโฌs spokesperson, said the outgoing Bidenรขโฌs administration was trying รขโฌลto keep pouring fuel on the fire and provoke an escalation of tensionsรขโฌ, according to Interfax.
