The China-led bloc will give members a chance to air common grievances, especially against Washington.

By Erin Hale

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Russian President Vladimir Putin and Indian Prime Minister Narendra Modi are among the more than 20 world leaders attending the Shanghai Cooperation Organisation summit, which is now the world’s largest regional grouping by population.

The Beijing-backed bloc will convene on Sunday and Monday in the northern Chinese city of Tianjin, bringing together a diverse range of power brokers from across Asia, Europe and the Middle East.