Iran and the U.S. have see-sawed between enmity and grudging diplomacy in the years since, with relations peaking when Tehran made the 2015 nuclear deal with world powers. But Trump unilaterally withdrew America from the accord in 2018, sparking tensions in the Mideast that persist today.

Iran said it’s “time to decide” ahead of Friday’s nuclear talks with the US, with the main sticking point being whether Tehran will be able to continue enriching uranium.

(Reuters) -Iranian Foreign Minister Abbas Araqchi said on Friday there was potential for progess in nuclear negotiations with the U.S. after mediator Oman made several proposals, adding that the talks were complicated and more discussions were needed.