Top diplomats from Group of 7 have held a first day of talks in Canada as U.S. President Donald Trump's trade and foreign policies have thrown the bloc's once solid unity into disarray

After a fresh wave of tariffs from the United States, Canada and the European Union said they would impose billions in levies on U.S. goods.

President Donald Trump said Friday he might impose reciprocal tariffs on some Canadian goods as soon as today, the latest development in his trade war with U.S. neighboring countries after a head-spinning week in which he imposed a 25% tax on Mexican and Canadian goods—then delayed most of the levies for a month.