The Czech premier said Wednesday that aiming to spend three percent of GDP on defence was "realistic", a day after US President-Elect Donald Trump urged NATO members to raise spending. Trump on Tuesday pushed NATO members to boost defence spending to five percent of GDP,

His comments echo previous demands made by incoming US President Donald Trump that Nato countries should spend 4% of their national income on defence - double the current target of 2%. A major Nato exercise will begin in Eastern Europe in mid-January,

US President-elect Donald Trump said that NATO countries should be spending 5% of gross domestic product (GDP) on defence, up from the current 2% target. "They can all afford it, but they should be at 5% not 2%,