The president has made numerous, often confusing media appearances since the start of the offensive on February 28, while only a third of Americans believe that the US-Israeli airstrikes are justified.

President Donald Trump has confirmed U.S. involvement in Israeli strikes across Iran, including Tehran on Saturday (28 February), in a “preventative attack”. In an eight-minute…

The BBC's State Department correspondent and Washington correspondent explain how the president is justifying the action and assess the risks ahead.