US President Donald Trump said Monday that he has instructed the Pentagon not to launch military strikes on Iran Tuesday as US allies in the Gulf are working to help reach an acceptable peace deal. Trump described "serious negotiations" as ongoing, with Gulf leaders expressing optimism that a deal could be achieved. "This deal will be very acceptable to the United States, all countries in the Middle East, and beyond," he said. Meanwhile, Iranian President Masoud Pezeshkian emphasized on social media that negotiations do not mean "surrender," and that Tehran will defend its national dignity and rights in all discussions.