>> Donald Trump visiting NATO headquarters in Brussels Thursday and he was in an unapologetic mood.>> 23 of the 28 member nations are still not paying what they should be paying and what they're supposed to be paying for their defense. This is not fair to the people and taxpayers of the United States, and many of these nations owe massive amounts of money from past years and not paying in those past years.
>> On the campaign trial, Trump had questioned the relevance of the alliance. Now Thursdays comments will disappoint fellow leaders who had hoped for a change of tone. Reuters correspondent Robin Emmott is in Brussels.>> It's one of the most anticipated NATO meetings in years after Trump so criticized the alliance in his election campaign, effectively calling it obsolete.
Now, the alliance has gone to great lengths to try and meet some of Trump's criticism, doing more on terrorism and offering more in defense spending. But today in a speech before going into dinner, Trump has scolded allies to their faces, saying they owned massive amounts of money to the alliance even if the alliance itself has no common budget.
So it remains to be seen what leaders will make of Donald Trump, but the initial signs are not good.>> This argument is about more than just money. In the past, Trump has also hinted that the US might not come to the aid of NATO members who he feels aren't paying their way.
That puts at risk the NATO pledge that an attack on one is an attack on all, Article 5 of the organization's founding treaty. On Thursday, Trump had only at passing mentioned that commitment, leaving it to White House senior officials to say he did support it after all. That's not the reassurance that NATO partners were looking for.