Canada likes to describe itself as a multicultural success story — a place where people from radically different backgrounds live side by side without much of the social turmoil seen...

Whether the summit ends in reassurance or rupture may come down to Wednesday, when Trump meets Ukraine’s president and weighs in on the future of U.S. forces in Europe.

The Canadian response to Ukrainians fleeing Russia’s large-scale invasion has been praised as one of the country’s most generous humanitarian responses in recent history. Through the Canada-Ukraine Authorization for Emergency...