As US President Donald Trump prepares to visit Beijing next week after a six-week delay, the cause of the delay – the war on Iran and the resulting closure of the Strait of Hormuz – risks becoming a fresh point of friction in his summit with his Chinese counterpart Xi Jinping. While both China and the US stand to benefit from the reopening of the strait and a permanent end to the war, Beijing and Washington have viewed the crisis through different lenses and sharply diverged over how to achieve...