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.

With one week to go until G7 leaders gather in Alberta, Prime Minister Mark Carney has announced his priorities for the meeting and is managing a guest list that lays bare fault lines in some of Canada’s international relationships.