India, Oct. 3 -- US President Donald Trump on Friday delivered a stark ultimatum to Hamas, demanding the Palestinian group accept his 20-point Gaza peace plan by 6 p.m. Washington, D.C. time on Sunday or face "all HELL, like no one has ever seen before."

In a post on TruthSocial, Trump said: "Hamas has been a ruthless and violent threat, for many years, in the Middle East! They have killed (and made lives unbearably miserable), culminating with the October 7th MASSACRE, in Israel, babies, woman, children, old people, and many young men and women, boys and girls, getting ready to celebrate their future lives together."

Trump's social-media message repeated elements of the plan he unveiled earlier this week with Israeli Prime Minister Ben...