Downing Street has denied that the prime minister was blindsided by US President Donald Trump's decision to enter the conflict in Iran.
No 10 was asked if Sir Keir Starmer had any idea what the US president planned to do next after his assessment that Trump wanted to push for de-escalation was proved wrong.
Starmer's spokesman said: "He acknowledges that it is a very fast-moving situation, he has an excellent relationship with President Trump, as detailed at the G7 last week when the president spoke about the strength of that relationship, but it is a fast-moving situation.
"The prime minister has been consistent that de-escalation and diplomacy for him is the order of the day."
But does the government believed Iran would listen to the UK's calls to de-escalate?
"I think our message to Iran has been very clear, which is that it is absolutely necessary for Iran to take the opportunity presented by the US to re-enter talks, and we would urge them to do so."