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.

Diplomats said Canada has ditched the idea of a traditional joint communiqué and would issue chair summaries in hopes of containing a disaster and maintaining engagement with the U.S.

The G7 leaders' summit kicks off in Canada today, June 15, with Ukrainian President Volodymyr Zelenskyy also participating. RBC-Ukraine breaks down the main topics and expectations surrounding the summit,