Canada’s Mark Carney will host world leaders in Kananaskis in coming days, with his plans for a unity G7 summit to unblock trade at the mercy of a new Mideast war and the temperament of Donald Trump.

This summit was meant to showcase Carney’s global leadership and Canada’s push for independence from the US. But the Middle East conflict has now overshadowed those goals, posing a major diplomatic challenge.

The Canadian prime minister said officials in Ottawa and Washington are in intense talks on a new economic-and-security pact, but there is no deal yet.