The European Union vowed to respond to President Donald Trump’s plan to impose 25% tariffs on steel and aluminum imports. European Commission President Ursula von der Leyen condemned the move, warning of “firm and proportionate countermeasures.” German Chancellor Olaf Scholz stated that the EU will act “as one” if necessary. The tariffs take effect March 12 and continue Trump’s long-standing grievances over trade imbalances. The EU is considering reinstating previous retaliatory duties and expanding its response. Trump defended the tariffs as a boost for US industry and hinted at further trade measures.