"The United States is not going to take care of everything", Trump said.
Despite Trump's criticism, Ischinger said the transatlantic alliance was in its best shape in years given rising military spending and efforts to shore up defences in the Baltic states and Poland after Russia's annexation of the Crimea region of Ukraine in 2014. He meets the Russian leader in Helsinki as the finale of a trip with earlier stops in Belgium, England and Scotland. "Politicians and everyone in Europe and North America have a role to play".
During a rally in Montana on Thursday, Trump mocked critics of his approach and preparation for the summit with Putin. "But I expect Germany to do more". "I assume Germany will continue aiming to meet that goal", he said.
At the same time, he declared that "Putin is fine" and that he had been preparing for their summit "all my life".
"So what do you think I should do about North Korea?" He added that if Trump is warmer toward Putin than the leaders of the military alliance that was founded to protect Europe from Soviet threats, it would go "a long way to undermining NATO, undermining the trans-Atlantic relationship, undermining our relationship with our allies".
Regional experts have questioned the success of the Trump-Kim meeting, in which the president agreed to suspend USA military exercises with South Korea but appeared to get little in return.
Representatives of Amnesty International held a banner demanding, "End Family Detention" while others held puppets depicting Trump.
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In 2016, police in Russian Federation conducted a number of raids on suspected cult members in Moscow and St Petersburg. Cult members have said they believed Asahara's prophesy that an apocalypse was coming and they alone would survive it.
Germany's Foreign Minister Heiko Maas warned in a recent speech that "old pillars of reliability are crumbling", in a veiled reference to the US withdrawal from the 2015 Iran nuclear deal to tariffs on European Union metals exports and the threat of more to come on cars. Trump also rejected the joint communique signed by leaders at the conclusion of the meeting, launching personal attacks against Canadian Prime Minister Justin Trudeau in the process.
Despite the planned protests and the controversy surrounding the president, the UK's ambassador to the USA said he will be an "honoured guest".
"That's the question: Is the USA security conditional?" asked Heather Conley, who served as a deputy assistant secretary of State in the Bureau for European and Eurasian Affairs for George W. Bush and is now a senior vice president at the Center for Strategic & International Studies.
Russia has repeatedly used the formation of these forces to argue that NATO's actions are ungrounded, though the Russian military is itself undergoing upgrades across its many branches.
On Putin's wish list: an end to USA military exercises in Europe and the scaling back of US forces there.
Asked about possible concrete outcomes from Trump's meeting with Putin, Huntsman said that "the fact that we're having a summit at this level, at this time in history, is a deliverable in itself", he said, although "I don't exclude that there will be some concrete agreement".
Trump has already met with Putin twice as president, including a meeting on the sidelines of a summit in Germany that stretched for more than two hours.