President Donald Trump sparked an uproar among leaders across the world after he signaled that he would be recognizing Jerusalem as Israels capital and moving the U.S. embassy there, upending decades of American foreign policy and potentially thwarting any hope for Israeli-Palestinian peace talks.

Trump called Palestinian leader Mahmoud Abbas and the leaders of several U.S. allies on Tuesday to break the news. He is expected to formally announce the decision in a speech on Wednesday.

Abbas warned Trump of the dangerous consequences such a decision would have to the peace process and to the peace, security and stability of the region and of the world, Abbas spokesman Nabil Abu Rudeina said in a statement after Trumps call. The Palestinian leader also called for three days of protest beginning Wednesday.

The embassy move would represent the kiss of death to the Israeli-Palestinian peace process, said Manuel Hassassian, the Palestinian representative to Britain an issue Trump has delegated to Jared Kushner , his son-in-law and adviser. Jordans King Abdullah II and Saudi Arabias King Salman made similar warnings .