What to know from the UN: Leaders speak of emerging threats as meeting nears

Ukraine’s President Volodymyr Zelensky addresses the Summit of the Future at United Nations headquarters on Monday (Seth Wenig/AP)

The security cordons are up. The streets are ready to be sealed off. Aircraft from myriad nations are landing in New York.

It all means one thing for the eastern part of Manhattan – the yearly gathering of world leaders at the United Nations is at hand.