President Donald Trump has arrived for the G7, or Group of Seven, summit in Canada, a country he's suggested should be annexed, as he wages a trade war with America’s longstanding allies. If there's a shared mission at this year’s G7 summit,

The issue of U.S. President Donald Trump's trade tariffs remains a source of deep tension between allies and the U.S. Trump hasn't attended a G7 summit since 2019, after upsetting the group the year before by withdrawing U.