Pledging to tackle COVID-19’s economic fallout — and prevent the next pandemic — while fighting climate change and other global calamities, the leaders of the seven wealthiest democracies met on England’s Cornish coast. Unlike the acrimonious 2018 confab with then-U.S. President Donald Trump, it was a smiling, chummy gathering that President Joe Biden compared to a wedding. So convivial was Biden that he walked arm-in-arm with French President Emmanuel Macron in flagrant violation of distancing protocols. Biden will continue his international diplomacy on Monday in Brussels, where NATO leaders will seek to repair their fraying defense pact and stand firm against China.