"Tremendous progress has been made, everyone's agreed to substantially up their commitment they're going to up it at levels they've never thought of before".
It remains to be seen whether Trump really meant it about consistency, when it comes to soccer, however. North Atlantic Treaty Organisation has estimated that 15 members, or just over half, will meet the benchmark by 2024 based on current trends.
"We are having a great meeting, we are discussing military expenditure and we are talking about trade".
Hours later, he and German Chancellor Angela Merkel met privately and discussed the pipeline, each reaffirming the partnership between the USA and Germany. But with Trump scheduled to meet with President Vladimir Putin of Russian Federation on Monday, the gathering was dominated by wrangling over money.
Trump has raised eyebrows and ruffled feathers at global summits in recent months, during which some perceive him to have defended Russian Federation at the expense of European allies.
Trump insisted that he would bring up key subjects including Syria, although he once again failed to rule out recognising Russia's annexation of Crimea.
Trump listed the top US arms makers, Lockheed Martin Corp, Boeing Co and Northrop Grumman Corp by name.
The Daily Mail runs with Mr Trump wading into the Brexit debate, saying the president delivered "some typically blunt home truths".
Protests planned ahead of Trump arrival
In another blow to May, Trump said her now ex-foreign secretary "would be a great prime minister ". Melania Trump , 48, isn't amused by the way the Londoners are going to greet her husband .
"I think, by and large, that the American people are glad to have a president who will be willing to maybe set aside some of the niceties and actually say what he thinks and defend their interests", Cornyn said.
When asked how that conversation might go, Trump said, "He may deny it". "They like me a lot in the U.K". "I'm a very stable genius".
President Kolinda Grabar-Kitarovic mounted a charm offensive at the summit, presenting Trump with a Croatian soccer jersey as giving him plenty of attention.
It was the most recent in a series of demands and insults that critics fear will undermine the decades-old alliance, coming days before Trump sits down with Putin at the conclusion of his closely watched European trip.
As representatives from the alliance's 29 member states return to their respective countries - or, in the case of U.S. president Donald Trump, travel on to meet his Russian and British counterparts - the participants will all be trying to make sense of what happened.
In February, NATO Secretary General Jens Stoltenberg said only about half of the alliance's 29 members are on track to meet the 2024 deadline - which he said would boost spending by $46 billion. It's also always been a bugbear for the USA, which spends more on defence both as a percentage of GDP and in absolute terms than any other member.
"They're here as a prime minister or as a president, and they can't necessarily go in and say, 'This is what we're going to do.' But they're going back for approvals", Trump said, acknowledging the political realities.
The outdoor arrival ceremony at Blenheim - Trump wore a tuxedo and first lady Melania Trump a butter-yellow, chiffon off-the-shoulder gown - was a grand affair marked by a military band in bearskin hats, hundreds of business leaders in black tie and gorgeous setting sunlight.
"We need our allies to spend two per cent". And one of the freedoms we have is freedom of speech and the freedom to express your views. "I don't. I'm very consistent", Trump said.