Donald Trump on Tuesday pushed NATO members to boost their defense spending to five percent of GDP, underlining his long-standing claims that they are underpaying for US protection.Trump has long been skeptical of NATO,

President-elect Donald Trump said NATO nations should spend the equivalent of 5% of their economic output on defense, ramping up his demands on European allies to more than double the current target.Most Read from BloombergNYC’s Subway Violence Deters Drive to Bring Workers Back to OfficeCan American Drivers Learn to Love Roundabouts?

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%,