By John Irish, Jarrett Renshaw and Andreas Rinke KANANASKIS, Alberta (Reuters) -Group of Seven leaders faced early challenges during meetings in Canada on Monday as U.S. President Donald Trump said removing Russia from the former Group of Eight over a decade ago had been a mistake.

Leaders of the world’s largest economies and democracies proceeded with their agenda at the 50th Group of Seven summit in Canada, despite President Donald Trump’s early exit. But regardless of efforts to present a united,

Six of the Group of Seven leaders have discussed Russia’s war in Ukraine and international cooperation on key, non-military issues, wrapping up a summit that was forced to try and demonstrate how the wealthy nations’ club still can shape world events despite the early departure of U.