LIMA, Peru - Prime Minister Justin Trudeau is back in Ottawa after meeting with leaders from Asian and Pacific nations at a summit dominated by uncertainty over the future of international trade.

That uncertainty was created by a man who wasn't even at the APEC leaders' annual meeting in Lima, Peru -- U.S. president-elect Donald Trump.

Trump's anti-trade stance shook up the agenda of the meeting, forcing the leaders to speak of the public relations war they now must wage to convince their citizens that trade has worked for them.

The final declaration from the 21 leaders speaks of keeping borders open to trade, avoiding currency manipulation and devaluation, and ensuring that everyone benefits from economic growth.

Trump has referenced each of those as issues he wants addressed in trade deals that he believes are unfair for the American economy.

Trudeau also didn't say whether he would lobby Trump to approve the Keystone XL pipeline, which Trump has spoken of fondly.

But the prime minister says he believes the pipeline is “an important way for Canadian resources to get to market.â€