Leaders of some of the world’s biggest economic powers will arrive in the Canadian Rockies on Sunday for a Group of Seven summit shadowed by a widening war in the Middle East, and U.S. President Donald Trump’s unresolved trade war with allies and

Global trade will be a major focus at next week's G7 summit as world leaders gather in Alberta, including U.S. President Donald Trump, who will be making his first appearance at a major international event since returning to the White House in January.

Former prime minister Jean Chrétien advised visiting dignitaries to ignore outbursts from U.S. President Donald Trump during the G7 summit in Alberta next week. “Don’t’ lose your cool,” Chrétien said,