The European Union has retaliated against US President Donald Trump with “countermeasures” worth $45 billion after his administration increased tariffs on all steel and aluminium imports to 25 per cent. The European Union has retaliated against US President Donald Trump with “countermeasures” worth $45 billion after his administration increased tariffs on all steel and aluminium imports to 25 per cent. World Politics, Business, Economics and Finance, Trade Latest business news