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.

The summit comes amid rising international tensions, as Trump and other allies continue their quest for an accord between Russia and Ukraine.

Group of Seven leaders are meeting in Canada, with issues such as the Israel-Iran conflict and U.S. tariffs high on the agenda, while nations hope to avoid clashes with Trump.

CNBC's Megan Cassella reports from Alberta, Canada, as G7 leaders gather for this year's summit. Why Red Sox traded Rafael Devers: Star slugger made spring trade request as relationship with team fractured