What is likely to happen now that the US has been given permission to use British bases for a ‘specific and limited defensive purpose’

• US-Israel war on Iran – live updates

• What we know so far on day three of the Iran war

Britain has rapidly been dragged into the war in the Middle East, with Keir Starmer concluding that involvement was inevitable because of Iranian retaliation, regional alliances – and a repeated US request for help. In doing so, the prime minister has changed his mind and concluded that what was once an illegal war has become in some respects, legal.