A blaze in Lebanon's southern coastal city of Tyre on March 4 following an Israeli bombardment. Photo: Kawnat Haju / AFP)
As the US and Israel ramped up their combined assault overnight, American President Donald Trump has said he will accept nothing less than Iran's 'unconditional surrender'.
It's almost a week since the two allies launched air strikes on Iran, killing Supreme Leader Ayatollah Ali Khamenei. Since then strikes have expanded to include Lebanon while Iran has fought back, hitting sites in several countries including Cyprus, Saudi Arabia, Israel and Qatar. On Thursday President Trump said he wanted to be involved in choosing Iran's next leader.
The BBC's Middle East Editor Sebastian Usher joins Mihingarangi Forbes live from London with the latest.