On Wednesday, as President Donald J. Trump was in Germany at the 2018 NATO Summit, he tweeted a message about contributions made to the organization by other nations, saying there is a need for improvement on the issue.

Trump tweeted: Billions of additional dollars are being spent by NATO countries since my visit last year, at my request, but it isn’t nearly enough. U.S. spends too much. Europe’s borders are BAD! Pipeline dollars to Russia are not acceptable!