Two months ago, the leaders of the world’s seven major industrialized democracies met in summer sunshine on England’s southwest coast. It was a happy occasion: the first in-person summit of the Group of Seven nations in two years due to the coronavirus pandemic and the welcomed appearance of President Joe Biden and his “America is back” message on matters ranging from comity to COVID-19 to climate change.
 
On Tuesday, those same seven leaders will meet again in virtual format confronted by a resurgence in the pandemic, more dire news on climate change and, most immediately and perhaps importantly, Afghanistan. The country’s burgeoning refugee crisis, the collapse of its government and fears of a resurgence in Afghan-based terrorism have left the G-7 allies scrambling and threaten the unity of the bloc.

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