Following an emergency session at the alliance headquarters in Brussels to discuss his demands, the U.S. president said the other members have agreed an unprecedented increase in defence spending.
Having questioned the value of North Atlantic Treaty Organisation in tweets throughout the summit, Trump later told reporters that the 29-member military alliance "was not doing what they were supposed to be doing" until he came to Brussels and that he was "extremely unhappy" until his intervention.
Merkel, facing domestic political opposition to pushing defence spending up from 1.2 percent of GDP, said she explained to Trump how much was already being done.
The president set himself a low bar for what he'll achieve in Moscow, telling reporters: "I think we go into that meeting looking for not so much".
Donald Trump's Jekyll and Hyde performance on the opening leg of his European tour - one minute angrily wielding a wrecking ball and the next playing the oleaginous anglophile - will hardly leave European diplomats, especially those in Britain, reassured as they brace themselves for his bilateral summit with Vladimir Putin on Monday.
Negotiations would then be widened to include members of both delegations, he said, adding that Russian Foreign Minister Sergei Lavrov will hold parallel talks in Helsinki with his US counterpart, Mike Pompeo.
At the end of the first day, Trumpunsettled allies even more by questioning the value of the military alliance, which was formed to counter Soviet aggression during the Cold War. "There is a complete unpredictability in this, and one of the things you need in this alliance is predictability towards Russian Federation".
Tusk also accused Trump of criticizing Europe nearly everyday and insisting that the European Union spends much more on defense than Russian Federation does.
Despite reports of tensions between Trump and some of the US's closest allies, the president insisted that relations between the leaders remain "very strong".
Trump said he made his anger clear to allies on Wednesday. "Every single U.S. president has been pushing the point of extra spending since Reagan and they have all been played I am not going to be".
Trump is reported to have spoken of "grave consequences" if allies did not meet their 2 percent of GDP defense spending targets, saying that the United States could "go our own way" if his demands were not met.
Another NATO diplomat said Trump trampled on protocol by pointing at some leaders he said were not spending enough and addressing Merkel by her first name, referring to her as "you, Angela".
Although administration officials point to the long-standing alliance between the United States and the United Kingdom, Trump's itinerary will largely keep him out of central London, where significant protests are expected.
But he reiterated his demand that USA allies spend more on defense.
Instead, a series of events - a black-tie dinner with business leaders, a meeting with May and an audience with Queen Elizabeth - will happen outside the bustling city, where Mayor Sadiq Khan has been in a verbal battle with Trump.
Brussels may dismiss this as typical Trumpian bluster, but my sense is that Trump is not bluffing. According to CNN, he said: "I told people that I would be very unhappy if they didn't up their commitments very substantially".
Trump pointed to the texts to label the ongoing investigation a "rigged witch hunt", and said the probe "really hurts our country and it really hurts our relationship with Russian Federation".
Two of her top government officials resigned earlier this week over negotiations on how to manage Brexit, including foreign secretary Boris Johnson, whom Trump has called a "friend".
Added Focus Features , "Since the series ended, fans of Downton have always been waiting for the Crawley family's next chapter". Gareth Neame , the film's producer, said, "Now, after getting many stars aligned, we are shortly to go into production.
Trump stressed his maternal Scottish and paternal German roots, declaring: "I have a great love for the countries of Europe". Trump told the British tabloid that "allowing the immigration to take place in Europe is a shame".
While tax credits have helped boost electric-vehicle demand in the US , they remain only 1.1percent of the market. As of next January, subsidies will be cut in half before being phased out completely a year later.
He also teased the Hungarian prime minister, Viktor Orban, over his strongman reputation, greeting him jokingly as "dictator". He added that Juncker made no secret about his illness and is now on medication and feels better.
This recent finding has left experts baffled because it measures nine foot long and that they do not know who or what lies inside. On the other side of the world, a rare ancient artefact depicting the famous female pharaoh Hatshepsut surfaced in the UK.
The fantasy dragons-and-swords saga, which already has 38 Emmys under its belt, is not expected back on screens until next year. Others in the category include "black-ish", " Silicon Valley ", " Curb Your Enthusiasm " and " Unbreakable Kimmy Schmidt ".
According to Wojnarowski, however, league sources said they expect the Hawks to now trade Schroder this offseason. Faried, 28, played in 32 games (seven starts) for Denver last season, averaging 5.9 points and 4.8 rebounds.
Well, the UFC, WWE or someone has to figure out what's going on in Lesnar's mouth before any talks of a title fight move forward. What resulted was Lesnar hurling insults and UFC setting up their future championship match in a very pro wrestling-esque way.
It comes days before Mr Trump's Helsinki meeting with Russian President Vladimir Putin, casting a major shadow over the encounter. Trump has said he believes Putin's denials that Russian Federation did not meddle in the election.
The dispute has jolted global financial markets, raising worries a full-scale trade war could derail the world economy. Its trade surplus with the United States over the same period was $133.76bn, up from $117.51bn previous year .
Louisville evaluating Papa John’s stadium name
The naming rights deal for the football stadium is unique, because the school's deal is with Schnatter, not the Papa John's brand. Schnatter also reportedly said that when he was growing up in IN, people would drag black people from trucks until they died.
Women Awarded Almost $5 Billion In Damages from J&J
The verdict comes in the first test of plaintiffs' claims of an asbestos ovarian cancer link in use of J&J's iconic baby powder. They also heard from the cancer survivors themselves and the loved ones of six plaintiffs who have died from their cancer.
Marvel Just Announced a BLACK WIDOW Movie
Shortland's credits include the World War II drama Lore from 2012 and the horror film Berlin Syndrome from past year . Marvel Studios' Black Widow movie is one step closer to happening, as the film has now set a director.
What Melania Trump will be doing in London
The Queen will meet President Donald Trump at Windsor Castle on Friday, the palace has confirmed. May and Trump are scheduled to hold talks and a joint news conference on Friday.
Israel to launch first lunar space mission in December
This way, they will raise interest in space among the people in Israel, and will also encourage young generations to study STEM. On the moon, the vessel will transmit data to the control centre at IAI for two days before its systems shut down.
Chelsea fires manager Antonio Conte after 2 years in charge
The club's 64-word announcement was eventually made on Friday, ending with: "We wish Antonio every success in his future career". Former banker Sarri, 59, will be Chelsea's ninth full-time manager since Roman Abramovich bought the club in 2003.
You Should Stop Eating Kellogg's Honey Smacks
The CDC puts salmonella illnesses at 1.2 million per year in the United States, 1 million of which are caused by food. It says that regardless of expiration date, the cereal should be thrown away or returned to a retailer for a refund.