The China-U.S. trade war presents an existential crisis for the G20 nations

In one month, leaders from the world’s top economies will meet at the Group of 20 summit in Osaka, Japan, to discuss key issues in the global economy. But the Osaka summit threatens to be held hostage by a growing feud between the world’s two largest economies – the United States and China – on trade, investment and the application of “fair rules” to economic practices.

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