Nigeria, July 9 -- US President Donald Trump lashed out at Spain on Wednesday at the NATO Summit in Turkey.

Mr Trump called the US partnership with Spain "a wasted cause" and threatened to cut off trade with the country while sitting beside NATO Secretary-General Mark Rutte.

"We don't want to do any trade business with Spain anymore, by the way," he said, according to the BBC.

"Spain is a terrible partner in NATO. They don't participate. They don't pay," he continued. "I don't want anything to do with Spain. Cut off all trade with Spain, please, including visits."

Watch them come running back. Oh, they'll come running back," he added.

He also revived his bid for the US to acquire Greenland, a demand that had caused tension between th...