After two days of meetings in Lima that rarely ventured beyond platitudes in discussing the strategies of the region’s major economies, the Asia-Pacific Economic Cooperation forum wrapped up on Saturday with a spirit of detente that many fear the summit may not see again for four years.

We are the most important alliance – or the most important relationship in the entire world, and how we’re getting along together can impact the rest of the world,” Biden said.

Xi, who arrived in Lima on Thursday, plans a week-long diplomatic blitz in Latin America that includes a refurbished free-trade agreement with Peru, inaugurating the massive Chancay deep-water port there and being welcomed in Brazil's capital next week for a state visit.