Representatives from 21 members representing the Pacific Rim are meeting in Peru for the Asia-Pacific Economic Cooperation forum, the first global summit since U.S.

Donald Trump's coming return to the White House hangs heavily over world leaders gathering this week in Peru for the APEC summit and then in Brazil for the G20 — two of the first international summits to be held since the U.

Still, analysts say he will be overshadowed at APEC by Xi, who arrived on Thursday and proceeded to inaugurate a $US1.3 billion ($A2 billion) mega-port that is perhaps the clearest sign of Latin America's ongoing reorientation in the region.