It’s a tableau no world leader — except perhaps President Donald Trump — wants to repeat. Convening in the Canadian Rockies for this week’s Group of 7 summit, presidents and prime ministers are hoping to avoid the acrimony that pervaded the last time this country played host to the world’s most exclusive club.

“You can’t afford not to talk about it, from any country’s perspective,” said Josh Lipsky, chair of international economics at the Atlantic Council.