The long-running economic battle between the world's two biggest economies has escalated. This week US President Donald Trump brought tariffs against China in an effort to strongarm the growing superpower into submission and strengthen American markets. But Beijing hit back, raising its own tariffs, escalating a trade war that could have implications for both countries. Trump is betting that tariffs will make America, and American people, richer. But does anyone win in a trade war?

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Producers: Alice Aylett Roberts, Mhairi MacKenzie and Eleanor Sly

Sound engineer: Stephen Bailey

Assistant editor: Sergi Forcada Freixas

Senior news editor: China Collins