Given the sometimes violent border clashes between China and India in recent years, observers will also be watching Xi’s and Modi’s body language closely. Despite their differences on key agenda items, they are likely to be all smiles. Neither has an interest in airing grievances. India, as host, wants a smooth show. China, which will host next year’s summit, also wants a positive atmosphere. And Xi’s overriding goal is to present his country as a mature and constructive global leader.

Russia, of course, wants whatever diplomatic, political, and economic support it can get for its stalemated war with Ukraine. Brazil, meanwhile, hopes to forge…

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