He has broken a mould among world leaders with a style that offers little evidence of self-doubt and ideas that run counter to received wisdom among Western diplomats. U.S. President Donald Trump meets with French President Emmanuel Macron at the U.S. ambassador's residence in Brussels, Thursday, May 25, 2017.
Tusk and Juncker will tell the U.S. president that since last year's shock Brexit vote, the European Union is "in a completely different place" after populist candidates lost in France and the Netherlands, a senior European Union official said.
Meanwhile, after the North Atlantic Treaty Organisation ambassadors meeting, a diplomat said that the member state representatives had decided on an action plan on terrorism for the summit, which "includes the accession of North Atlantic Treaty Organisation to the global coalition against Daesh".
Secretary-General Jens Stoltenberg said Thursday that the plans would lay out how they expect to move toward spending 2 percent of gross domestic product on defense by 2024.
The plans also would detail the types of military equipment the countries want to purchase and how they intend to contribute to North Atlantic Treaty Organisation operations.
Stoltenberg says North Atlantic Treaty Organisation defense ministers would review the plans in February.
The NATO military alliance - which Trump on the campaign trail dismissed as "obsolete" for focusing on Russian Federation instead of terrorism - is set to bow to his demands that it formally join the US-led coalition against IS.
Merkel said Thursday that North Atlantic Treaty Organisation leaders, meeting in Brussels, will confirm a decision from 2011 to increasing spending toward 2 percent of GDP by 2024.
On Wednesday Trump said he was "more determined than ever to pursue PEACE in our world" following a "fantastic" meeting with Pope Francis.More news: South Korea commemorates anniversary of a pro-democracy uprising
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Another big item on the North Atlantic Treaty Organisation agenda is Trump's challenge to other countries to up their military spending.
German Chancellor Angela Merkel says she will tell Turkish President Recep Tayyip Erdogan that she plans to withdraw her country's troops from an air base near the Syrian border if lawmakers are banned from visiting them. "This is the kind of dialogue that is conducted at numerous sessions of the Russia-NATO Council, which we intend to continue", the source added.
Canadian Prime Minister Justin Trudeau says it's important for North Atlantic Treaty Organisation and partners to share information, as a row brews between Britain and the United States over Manchester bomb scene photos.
Manchester police say they will stop sharing information with the United States.
Trump's first foreign tour, which has so far taken him to Riyadh, Jerusalem and Rome and will end this weekend at a G7 summit in Sicily, has been presented by aides as reassuring allies that Washington remains a reliable partner under a head of state who faces a series of ethics questions back home.For Charles Michel, the 41-year-old premier whose partner showed the group around Brussels, an itinerary that also took in tea with Belgium's queen was also a chance to show those close to power a host country keen to punch above its weight.
U.S. President Donald Trump told fellow North Atlantic Treaty Organisation leaders on Thursday that the United States would never stop fighting terrorism, calling the Manchester attacks "savage" and "barbaric". Leaders will agree to submit annual action plans laying out how they plan to meet NATO's spending goals.
Secretary-General Jens Stoltenberg said Thursday that joining the US -led anti-Islamic State coalition "will send a strong political message of NATO's commitment to the fight against terrorism and also improve our coordination within the coalition".
France, Germany and Italy dropped their objections so long as it was made clear that the alliance would have no combat role, with North Atlantic Treaty Organisation only providing increased AWACS surveillance planes, support and training.