France, Sept. 24 -- Donald Trump's return to the United Nations was marked by fiery rhetoric, a surprise shift in stance on Ukraine - and a sharp reminder from Emmanuel Macron that peace in Gaza could define his legacy.

Following the American president's scathing speech at the UN General Assembly on Tuesday, French President Emmanuel Macron had a pointed message for Trump: if the US leader really wants a Nobel Peace Prize, he has to stop the war in Gaza.

Speaking to France's BFM TV from New York, Macron said only Trump had the leverage to push Israel towards ending the conflict.

"There is one person who can do something about it, and that is the US president," Macron declared. "The reason he can do more than us is because we do not sup...