European Commission President Ursula von der Leyen has strongly criticized Washington's decision to impose a 30 percent tax on European Union (EU) exports, warning that the EU could impose "reciprocal taxes" with the US if necessary. Von der Leyen's comments come after US President Donald Trump announced earlier that his administration would impose a 30 percent tariff on EU exports. Von der Leyen said such a tariff would severely disrupt vital transatlantic supply chains. Her comments suggest that the Trump administration's latest trade policies have further strained global trade relations.