LyrArc Article Gist
What the US wanted in the initial hours- use of Diego Garcia base and RAF base in Haverford Gloucestershire. UK's Keir Starmer first denied use of the bases and till he could verify US attacks were within international law. When Iran responded with a a barrage of drones and ballistic missiles 840 drones and 340 ballistic missiles and attacked the British base RAF Akrotiri in Cyprus, suddenly Starmer saw the opportunity to justify US use of British bases on defensive grounds. DJT called the British response "very disappointing." Starmer told parliament- 

"To be clear, the use of British bases is limited to the agreed defensive purposes; we are not joining the US and Israeli offensive strikes. The lessons of history have taught us that it is important when we make decisions like this, that we establish there is a lawful basis for what the United Kingdom is doing. That is one of the lessons from Iraq, and that there's a viable thought-through plan with an objective that can be achieved or has a viable prospect of being achieved.That is the principle that I applied to the decisions that I made over the weekend. This government does not believe in regime change from the skies."

The situation Starmer faces domestically is that voters for Reform UK and Conservatives support full use of the airbases. Voters who vote for Liberals, Greens and Labour do not support use of the British airbases. Local elections in which Labour is seen losing a large share of its 2024 vote to Greens and Liberals is one factor the premier had in mind, in addition to issues in the war in Iraq.  Another is the consideration that Britain has a large presence in the Gulf from the days of the Empire when they were British colonies.Already in 24 hours 100,000 Britons have registered for help in the Gulf region. Britishers run much of the tourism, airlines and other business in the Gulf region as the Gulf states are small in area, with small populations and a large population from South Asia for certified migrant labor, and British managers at the higher levels. When Iran attacked UAE, Bahrain, Qatar, and Saudi Arabia with drones and ballistic missiles it was clear that Britain was also being attacked though the attack on the RAF base in Cyprus was cited.