“Donald Trump, other senior US officials and their cheerleaders appear to be embracing attacks – and threats of attacks – on Iranian civilian infrastructure, which legal experts say appears to constitute serious war crimes under international law.

“ In a rambling national address on Wednesday, the US president warned that if Iran did not reach an unspecified deal with him, US forces would “hit each and every one of their electric-generating plants” and “bring [Iran] back to the stone ages – where they belong”.

“Following through on that threat a day later, Trump posted images of a strike on the unfinished B1 bridge near Tehran, warning: “Much more to follow!””