United States President Donald Trump has departed for Beijing ahead of a high-stakes summit with Chinese President Xi Jinping, after weeks of unsuccessful US efforts to persuade China to help bring Iran back to negotiations and ease tensions around the Strait of Hormuz.The leaders of the world’s two largest economies are due to meet on Thursday and Friday during Trump’s first visit to China since 2017, with talks expected to focus on trade, Taiwan, artificial intelligence and the war involving Iran.Recommended Stories list of 3 itemsend of listHere is what we know about the upcoming summit and the key issues expected to dominate the agenda.Why does the Trump-Xi summit matter?The Trump-Xi summit is a high-level meeting between Trump and Xi Jinping taking place in Beijing as the world’s two largest economies face growing tensions over trade, technology, Taiwan and the Iran war.The summit is particularly significant because Trump will be the first US leader to visit China in nearly a decade, while the talks also come at a time of heightened geopolitical and economic uncertainty. Originally expected earlier this year, the meeting was delayed by the war on Iran.Before departing for Beijing, Trump said he and Xi would have a “long talk” about Iran, although he stressed that trade would remain the central focus of the visit.“Trade remains politically powerful, especially for Trump, because it gives rivalry a language that voters can easily understand,” said Salvador Santino Regilme, associate professor and programme chair of international relations at Leiden University. “Yet the deeper conflict concerns hierarchy, legitimacy and the future architecture of global order.” Advert …