Iran and Israel continue to attack each other on Wednesday night, as Donald Trump weighs US involvement.
Earlier, Trump mentioned "he may do it, or he may not do it", when asked whether the US would join Israeli strikes on Iran.
The US president added nobody knows what he want to do, but he can say that Iran's got a lot of trouble and wants to negotiate.
The Iranians responded by saying they would not grovel at the gates of the White House.
The US has not, so far, asked to use UK bases in Cyprus or Diego Garcia for any possible attack, writes our correspondent Jonathan Beale.
Iran's supreme leader warned Trump of irreparable harm" if the US joins Israeli attacks.
[Source : BBC]
