U.S. President Donald Trump will arrive Sunday for a Group of Seven summit in a country he has suggested should be annexed and as he wages a trade war with America's longstanding allies.

Trump's calls to make Canada the 51st U.S. state have infuriated Canadians, and Prime Minister Mark Carney, who won his office by pledging to confront the U.S. president's increased aggression, now hosts the G7 summit.