There had been concern that President Trump might leave the alliance.
If true, that would be a historic move but there's just one problem: it's not.
"President Trump created for the second day a crisis on [NATO] spending".
He complained the United States "pays tens of Billions of Dollars too much to subsidize Europe" and demanded that members of the military alliance meet their pledge to spend 2 percent of GDP on defense, which "must ultimately go to 4%!"
In a chaotic 28 hours at NATO, President Donald Trump disparaged longtime allies, cast doubt on his commitment to the mutual-defence organization and sent the 29-member pact into frenzied emergency session.
Trump had spent his time in Brussels berating members of the military alliance for failing to spend enough of their money on defence, accusing Europe of freeloading off the USA and raising doubts about whether he would come to members' defence if they were attacked.
Once Merkel had delivered her own reaction, in the form of a history lesson and her personal history in East Germany, other German government politicians lined up to reject Trump's criticisms.
The alliance, which sees an attack on one member as an attack on all, was set up at the height of the Cold War, as a counterbalance to the Warsaw Pact between the Soviets and their satellite states. "It's been incredible to see the level of spirit in that room".
Ukraine and parts of eastern Europe fear their partners to the west may be much less vocal next time if they receive their natural gas through a different set of pipelines, allowing Russian Federation to cut off its unruly neighbours with impunity.
Apart from the USA, only three North Atlantic Treaty Organisation countries hit the two-percent target in 2017 - Britain, Greece and Estonia - but four more are expected to clear the threshold this year.
He also said meeting the queen would be an experience Trump "will really cherish".
"There is a communiqué that was published yesterday".
Trump last week told senior aides he was going to make threats about military spending and that he was determined to flip the table over before he left, a senior administration official said ahead of Thursday's drama, speaking on condition of anonymity to discuss sensitive summit planning.
"(The) 2 per cent (figure) was a range, a goal, now it's a commitment, it was like this amorphous number out there and now it's a real commitment", he said. "We made a tremendous amount of progress today", he told reporters. People are paying money that they never paid before. At a time when the USA needs its European allies the most to combat aggression from Russian Federation, he reportedly continues to antagonize them with rhetoric like he used at the summit. He also said the other leaders had thanked him for raising the issue of how to support NATO's operations. "You know, he's done so well in his negotiations", he said, "I'm not about to second-guess how he's doing it".
Trump then held an impromptu press conference. "I'm a very stable genius", he joked.
Since President Donald Trump's decision to withdraw from the agreement, European states have been scrambling to ensure Iran gets enough economic benefits to persuade it to maintain the nuclear curbs required in the deal.
Trump has said next week's meeting with Putin "may be the easiest" part of his European tour.