EU retaliates after Donald Trump’s steel and aluminium tariffs take effect Financial TimesThe EU says its countermeasures to Trump’s tariffs will go into effect on April 1 The Associated PressWatch EU’s Von Der Leyen Announces Countermeasures on Tariffs BloombergTrump tariffs live updates: EU retaliates after Trump tariffs on steel and aluminium take effect BBCTrump’s 25% tariffs on steel and aluminum imports take effect, Europe retaliates CNBC