The president, who has been dogged by the war in Iran and eroding alliances, is also expected to sign a security deal on Greenland and meet with world leaders.

UNITED NATIONS — U.S. President Donald Trump is set to address the 81st Session of the United Nations General Assembly on Tuesday, despite his administration's efforts to undermine multilateralism and to target allies with threats and tariffs.

The UN summit will bring together Donald Trump and Iran's president in New York while their countries are at war. The US president has signalled he's open for a meeting in a crucial week for international diplomacy.

President Donald Trump addresses the U.N. General Assembly at a challenging moment for the world and his presidency.

Normally, global politics takes center stage during the UN General Debate. In 2025, however, an incident involving U.S. President Trump on an escalator temporarily stole the show. That shouldn't happen again.

China is urging the U.S. and Iran to return to the negotiating table ahead of a meeting between Xi Jinping and the President Donald Trump next week. Trump is also set to speak about the Tehran regime at the U.

The U.S. ambassador to the United Nations said President Donald Trump will continue to call out what the administration considers "ridiculous" about the world peacekeeping body when he addresses the General Assembly on Tuesday.

President has been posting on Washington arch, AI and his ‘25 top achievements’ – the chances of an uplifting speech appear slim

Normally, global politics takes center stage during the UN General Debate. In 2025, however, an incident involving U.S. President Trump on an escalator temporarily stole the show. That should not happen again.

New Delhi, Sept. 21 -- Donald Trump has issued a fresh warning on Iran as tensions between Washington and Tehran threaten to escalate once again. Trump said he was in "deciding mode" and warned that "very big things" could happen, while discussing options ranging from a deal and economic pressure to potentially destroying the regime. Iran, meanwhile, has warned that any new U.S. strike could trigger retaliation against American bases and regional interests. With Washington also warning of possible flight cancellations and airspace closures, fears of a wider Middle East escalation are growing. Watch the full report for the latest developments.