With the fragile US-China trade truce nearing its November expiry date after two 90-day extensions, next week’s talks in Madrid could be decisive – not only in determining the likelihood of a summit between presidents Xi Jinping and Donald Trump, but also whether the two sides can agree to a lasting settlement rather than another shaky detente, according to analysts.A fourth round of major trade talks between Beijing and Washington is set to unfold next week in the Spanish capital, with US...