Donald Trump has repeatedly suggested that Canada should become the 51st state of the United States. Such a move would mean the elimination of the 8,890-kilometre border between the two countries.

His warning on trade — combined with his repeated calls for the United States to annex Canada — has the country’s flag makers struggling to keep up with suddenly soaring demand.

Stock markets in Canada and the U.S. surged higher in late-morning trading after reports that a new round of U.S. tariffs ...

The red-and-white flag of America’s northern neighbor was lifted over the state Capitol on Saturday in recognition of Colorado-Canada Friendship Day. Colorado exported $1.8 billion in trade ...