“One month before President Xi Jinping and Donald Trump are set to convene at a much-touted summit in China, the U.S. leader’s toppling of another friend of China risks stoking tensions between the world’s biggest economies,” Bloomberg reports.“After US and Israeli military strikes on Iran wiped out the Islamic Republic’s Supreme Leader, Chinese Foreign Minister Wang Yi on Sunday called it ‘unacceptable to openly kill the leader of a sovereign country and institute regime change.’ Speaking by phone with his Russian counterpart, Wang warned that the US president risked driving the Middle East into the ‘abyss.'”“Condemnation of Washington from China’s top diplomat stands out during a delicate period when officials on both sides are trying to steady relations before Trump arrives in Beijing on March 31. Complicating that task, the Republican has ousted two leaders with ties to Beijing in quick succession this year, after the US in January snatched Venezuela’s Nicolás Maduro from his Caracas home.”