When US President Donald Trump meets his Chinese counterpart, Xi Jinping, on the margins of the G20 summit in Buenos Aires between November 30 and December 1, nothing less than a reasonably healthy global trading system and continued economic growth will be on the table.
It is one of the more significant meetings between two global leaders in the modern era.
The encounter will recall the high-wire diplomacy between Ronald Reagan and Mikhail Gorbachev in the 1980s, which signalled the end of the Cold War and, as it happened, the disintegration of the former Soviet Union.
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