Washington, Nov. 14 -- US President Donald Trump, Russian President Vladimir Putin and Chinese President Xi Jinping are set to hold an unprecedented trilateral meeting next week on the sidelines of the Asia-Pacific Economic Cooperation (APEC) summit in Shenzhen, China, marking the first joint engagement between the leaders of the three major global powers.

The White House confirmed the planned meeting, which is expected to focus primarily on nuclear disarmament, global security and Iran. However, US officials have played down expectations of any immediate agreement, describing the engagement as an initial opportunity to open dialogue at the highest level.

White House spokesperson Olivia Wales said Trump intends to discuss reducing nuclear...