Mr Trump stated his commitment to the North Atlantic Treaty Organisation, speaking after reports that he had warned leaders that the U.S. could pull out of the alliance if other members failed to increase their contributions.
"Allies would be increasing spending by $33 billion or more", he added.
As the drama unfolded, a day after Trump launched a virulent public attack on German policy, NATO Secretary General Jens Stoltenberg cleared the room of many officials and the invited leaders of non-members Georgia and Afghanistan so that the other 28 leaders could hold a closed session with the president.
Trump emerged declaring continued commitment to a Western alliance built on U.S. military might that has stood up to Moscow since World War II.
"That is all", Macron said.
"Yesterday I let them know that I was extremely unhappy with what was happening", Trump said, adding that, in response, European countries agreed to up their spending.
House Democratic Leader Nancy Pelosi told reporters that Trump needs to get something more than, "I asked him, he said no and that was that", from Putin. People are paying money that they never paid before.
In August of 2016, at the height of the United States presidential election race, 50 Republican national security experts warned then Republican nominee Donald Trump would be "the most reckless president" in American history.
"We have been extremely tough on Russian Federation", he said at a joint press conference with British Prime Minister Theresa May. "Germany just started paying Russian Federation, the country they want protection from, Billions of Dollars for their Energy needs coming out of a new pipeline from Russian Federation".
Everyone's agreed to substantially up their commitment.
"I think he's got what it takes". That would mark a significant milestone for the alliance.
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The rescue mission began after the youth soccer team became trapped when heavy rainfall flooded the cave system on June 23. Sadly, soon after Dr Harris left the cave his father passed away suddenly.
"Ultimately, that will be going up quite a bit higher than that", he said.
US leaders for decades have pushed North Atlantic Treaty Organisation allies to spend more on defense in an effort to more equitably share the collective defense burden.
During the news conference Friday, Trump and May dismissed criticism he shared of the prime minister during The Sun interview. He said that two-thirds of the allied states had made plans to reach two per cent of GDP in 2024 and eight members had already achieved it.
Some will say that an unpredictable president such as Donald Trump is the only American leader who could achieve these outcomes - because the fear is real.
The early morning drama was part of two days of diplomatic theatre in Brussels, as allies tried to shield a post-war world order from his "America first" demands. He said that he expected the pressure to increase defence spending to continue.
The Kremlin hopes next week's U.S. -Russia summit in Helsinki may pave the way for U.S. President Donald Trump to visit Moscow and for President Vladimir Putin to make an official visit to Washington, it said on Friday.
Politico said Trump warned of "grave consequences" if the allies did not immediately meet the 2 per cent spending targets.
The head of the Polish president's National Security Bureau, Paweł Soloch, said that US President Donald Trump's opinion "is important if the project is to be blocked".
Washington also wanted Russian Federation to spell out guarantees in the statement - or a separate document - that Russian Federation would not interfere in future United States elections, Kommersant said.
Trump said he did not think Russian Federation would have invaded Crimea if he had been in the White House at the time.
Still, Trump has been more conciliatory behind the scenes, including at a leaders' dinner Wednesday.