Secretary of State John Kerry and foreign ministers Stephane Dion of Canada and Claudia Ruiz Massieu of Mexico struck an upbeat tone at their annual get-together yesterday.
But Dion made it clear that when Canada's new Liberal prime minister, Justin Trudeau, announces his war plan, his country's six CF-18 jets will leave Syrian skies.
Dion will now travel to Rome next week to join Kerry and two dozen more leaders from the US-led coalition to discuss new ways to work together against the threat.
"We will continue our discussion on this in Rome soon."
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Kerry appeared satisfied by Canada's promise, acknowledging its effort in the fight so far and predicting a strong future coalition effort.
"And Canada has played an outsized role really already in many different ways in both the military and the humanitarian component of the counter-Daesh struggle," Kerry said.
"And I am absolutely confident from my conversation with Stephane that the prime minister and his security team are working on ways to continue the contribution and to continue to make a significant contribution to our efforts."
"I know President Obama is very excited about welcoming Prime Minister Trudeau to Washington," Kerry said.
"This is the first official visit of a Canadian head of government in nearly two decades, long overdue and much anticipated."
The young Canadian leader's government is expected to have more in common with the Democratic administration south of the border than did its Conservative predecessor, but there are points of concern.
Ottawa's plans to withdraw its warplanes from the US-led coalition targeting IS fighters in Syria is a symbolic blow against allied unity in the fight.