Weeks after the European Union and China struck a deal aimed at averting a looming trade war, the two sides remain at loggerheads over what is wrong with their relationship, how to fix it and who is to blame. At an event in Brussels this week, threats were exchanged and differences rose to the surface. With the ink barely dry on their fragile trade peace, the dynamic made clear that both are still preparing for a trade war. “If the EU insists on adopting restrictive and discriminatory measures...