"Germany is a captive of Russia because it is getting so much of its energy from Russia", Trump said, taking particular aim at the proposed Nord Stream II gas pipeline, which he has previously criticised.
Ahead of this week's summit, Mr Trump has routinely urged other North Atlantic Treaty Organisation members to increase their military spending.
While countries closer to Russian Federation, such as Latvia, Lithuania, Romania, and Poland, significantly boosted defense, most other members took a more relaxed approach, with Germany's defense minister saying in 2015 that she didn't see a need to meet the spending bar, Deutsche Welle reported.
The United Kingdom, with its eye on Brexit, is most likely to side with Mr. Trump, said Michael C. Desch, director of the Notre Dame International Security Center. "I think that's very inappropriate".
His stance earned him a summit eve rebuke by EU President Donald Tusk who said that Trump should "appreciate" his allies and that the United States didn't have many.
But instead of trying to engage with what Trump actually said during the Fox News interview, Gardner pretended Trump actually meant the opposite of what he said.
Many US presidents have urged European governments to spend more on their militaries. Trump has praised Brexiteers and trashed the European Union in the past, and he piled on ahead of his first visit to Britain.
The NATO chief was frank about the impact of Trump's criticism on the organisation.
Italian Interior Minister Matteo Salvini even had some Trump-esque praise for Mr. Putin, whom he hoped to meet during a trip to Moscow for the Wold Cup final.
The president has lashed out at countries that fall short. "Will they reimburse the U.S.?" he said in one tweet.
He said the U.S. did not and would not have a better ally than the EU, reminding the president that European troops had also fought and died in Afghanistan after the 11 September 2001 attacks on the US.
Mr Trump predicted as he departed Washington that the "easiest" leg of his journey would be his scheduled sit-down with Mr Putin.
"But how can you be together when you're getting energy from the group you want protection from?" the president asked.
Last month, Austrian President Alexander Van der Bellen said that while U.S. politicians are accusing Europe of being dependent on Russian gas, Washington was force-feeding Europe its liquefied natural gas, which is three times more expensive than natural gas from Russia.
The 1.5 percent level forecast for NATO's European members in 2018 compares to 1.46 percent a year ago, 1.44 percent in 2016 and 1.42 percent in 2015.
He had a fantastic tri-series tournament where he scored 61, 6, 47, 73 and 91 runs to help his team beat Australia in the final. Australia will bat first in their Twenty20 tri-series final against Pakistan after captain Aaron Finch won the toss .
"Il est vrai qu'après le G7, dont Donald Trump s'est désolidarisé, tout le monde attend ce que va faire le président américain". Le président américain se rend au siège de l'OTAN , puis à Londres, cette semaine, avant un sommet avec Poutine.
Il n'ignore pas, bien sûr, sa baisse dans les sondages et ce sobriquet vexant de président des riches qui lui est attribué. C'est le même trait, la même finalité: "Etre plus fort pour être plus juste".
As she got off a plane in transit at the airport in Helsinki, she spread her arms and grinned widely at a waiting photographer. "Only by taking medication can I fall asleep and stop looking at this painful world", she said, according to Ye.
A Facebook spokeswoman said the company was cooperating fully with an investigation by Australia's privacy commissioner. Mail.Ru told CNN it had not been contacted by Facebook about its investigation into the misuse of user data.
Peter Mark Andrew Phillips, the first child of Princess Anne and Captain Mark Phillips, was christened in December 1977. Lucy Middleton is Kate's cousin and the sister of Adam Middleton , who is one of Princess Charlotte's godparents.
Investors are also keen for details on Erdogan's new economic team, which is expected to be announced later on Monday. The lira on Tuesday gained back 0.5 percent against the dollar to trade at 4.7 to the greenback.
France is back in the World Cup final for the first time since Zinedine Zidane's headbutt in 2006. "I don't have the words". We had the chance to win the final of the Euros, but we missed a wonderful thing and we must not let this chance pass.