WASHINGTON—World leaders gathering this week for an annual United Nations meeting will confront persisting global problems such as Covid-19 and climate change, while grappling with new tensions and conflicts dividing U.N. members.
Diplomats and leaders attending the U.N. General Assembly in New York will also contend with the return to power of the Taliban and the humanitarian situation in Afghanistan, as well as the challenge posed by Iran under a new, hard-line president, Ebrahim Raisi.