UK Prime Minister Keir Starmer formally rejected calls for a parliamentary vote on British involvement in the Iran war on Monday, insisting that US access to RAF Fairford and Diego Garcia remains limited to "specific and limited defensive purposes." The decision cements a position Starmer first resisted — he refused all base access on 28 February before reversing on 1 March — and sets the government against its own legal advice.
Attorney General Lord Hermer KC assessed that the US-Israeli operation does not accord with international law, according to reporting first published jointly by The Guardian and The Jewish Chronicle1. That assessment shaped Starmer's initial refusal. Chatham House published analysis arguing the government's distinction between "defensive" and "offensive" base use "blur[s] the line between lawful self-defence and unlawful war on Iran"2. The government has not publicly disputed either assessment. Starmer — himself a former Director of Public Prosecutions and human rights barrister — is proceeding with a military commitment his own chief legal adviser considers illegal.
The parliamentary numbers expose the distance between public sentiment and Westminster arithmetic. Jeremy Corbyn's bill requiring parliamentary approval for foreign use of British bases attracted 11 co-sponsors in a 650-seat Commons. YouGov polling shows 58% of Britons oppose US use of UK bases; 21% support it. A cross-party grouping of Greens, independents, the new left-wing "Your Party," and Labour backbenchers is forming but remains nowhere near a blocking majority. The Labour whip holds, whatever the country thinks.
Blair took the 2003 Iraq invasion to a Commons vote. Cameron lost a 2013 Syria vote and honoured the result. Starmer's refusal removes parliamentary scrutiny from a conflict in which British sovereign territory — Diego Garcia — has already absorbed Iranian ballistic missile fire. Iran warned the UK that permitting base access made Britain "a participant in aggression". The government's legal position rests on a distinction between hosting operations and conducting them. Iran does not draw that line. Chatham House's analysts do not draw it. The attorney general, by the available evidence, does not draw it either.
