WASHINGTON — President Donald Trump shattered decades of unwavering U.S. neutrality on Jerusalem Wednesday, declaring the sorely divided holy city as Israel’s capital and sparking frustrated Palestinians to cry out that he had destroyed already-fragile Mideast hopes for peace.

Defying dire, worldwide warnings, Trump insisted that after repeated peace failures it was past time for a new approach, starting with what he said was his decision merely based on reality to recognize Jerusalem as the seat of Israel’s government. He also said the United States would move its embassy from Tel Aviv to Jerusalem, though he set no timetable.

“We cannot solve our problems by making the same failed assumptions and repeating the same failed strategies of the past,” Trump said, brushing aside the appeals for caution from around the world.

Harsh objections came from a wide array of presidents and prime ministers. From the Middle East to Europe and beyond, leaders cautioned Trump that any sudden change on an issue as sensitive as Jerusalem not only risks blowing up the new Arab-Israeli peace initiative led by Trump’s son-in-law, Jared Kushner, but could lead to new violence in the region.