Optimism for a US-Iran peace deal appeared to be mounting again, although such hopes have risen in the past only to be dashed amid threats of mass destruction from both sides.

President Donald Trump said that negotiations with Iran were "in the final stages” as Iran said it was studying a new US proposal to end the war.

President Trump announced the unfinalized deal on social media after talks with Israel and other allies. It aims to end the war and includes two-month negotiations on Iran's…