Washington DC, Nov. 14 -- US President Donald Trump is set to participate in a first-ever trilateral meeting with Chinese President Xi Jinping and Russian President Vladimir Putin on the sidelines of the Asia-Pacific Economic Cooperation (APEC) Summit in China next week.

The discussions between the leaders are expected to focus on nuclear disarmament and Iran, senior US officials said, as reported by ABC News.

The meeting will mark an unprecedented joint engagement between the leaders of the three major powers, although US officials have downplayed expectations of an immediate agreement on nuclear weapons reduction, describing the interaction as an initial conversation.

According to CNN, White House spokesperson Olivia Wales said Trump...