Global financial markets have been plunged into turmoil as Donald Trump’s escalating trade war knocked trillions of dollars off the value of the world’s biggest companies and heightened fears of a US recession.

As world leaders reacted to the US president’s “liberation day” tariff policies demolishing the international trading order, about $2.5tn (£1.9tn) was wiped off Wall Street and share prices in other financial centres across the globe.

Experts said Trump’s sweeping border taxes of between 10% and 50% on the US’s traditional allies and enemies alike had dramatically added to the risk of a steep global downturn and a recession in the world’s biggest economy.

World leaders from Brussels to Beijing rounded on Trump….