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

European Central Bank interest rates have room to fall further as inflation moderates, ECB board member Piero Cipollone said, warning that the U.S. administration's trade war with China could have a detrimental impact on the 20-member euro zone.

After many months of threats, the US has imposed 10% tariffs on all Chinese goods coming into the country. Helen Qiao, chief economist for Greater China at Bank of America, joins John Lee and Katia Dmitrieva to gauge the impact in the world's second largest economy and what could lay ahead.

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.

China’s tariff increases and other countermeasures were mostly symbolic and apparently designed to project strength while leaving the door open to talks.

As Trump’s new 10 percent tariffs on all Chinese imports took effect, China hit back with tariffs and sanctions of its own.

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.