Beijing has made its decision. After days of warning of counter measures and urging Washington to enter negotiations and "meet China halfway", it has decided to hit back – or at least threaten to retaliate with its own tariffs.

The world's two biggest economies are on the brink of an economically destructive trade war. Here's what experts think could happen next.

The first punches have been thrown between the United States and China in what could amount to a short-lived trade dispute with limited economic fallout or the start of yet another lengthy and painful trade war reminiscent of President Donald Trump’s first term.