How will they impact the US and global economy? And what is a tariff, anyway? BBC correspondents around the world are answering your questions Here's a brief reminder of what tariffs have been imposed,

This move risks disrupting global trade, harming key economic partners, and creating unnecessary uncertainty,” says EU executive, expressing solidarity with “close allies” Canada and

Ireland will feel the effects of US tariffs - even before they are imposed on European Union goods, according to a trade expert.