President Trump used NATO's July 2026 summit in Ankara, Turkey to challenge America's allies over defense spending and to push his long-standing demand that the United States, not Denmark, should control Greenland Reuters. The summit was supposed to show that NATO—the military alliance of North America and Europe—was unified and strong. Instead, Trump told allied leaders that NATO members had not stood by America during the Iran conflict, and called their resistance to his Greenland position a "big problem" France24.

The tension had been building for weeks. On July 3, Trump called the U.S.-NATO relationship "ridiculous" and "one sided," saying America shoulders too much of the burden The Guardian. European leaders hoped that Trump's friendships with Turkish President Erdogan and NATO's Secretary General Mark Rutte might smooth things over, but they were not confident Reuters. Trump himself said he might not have come to the summit at all if Erdogan had not been hosting it—a sign of how much personal relationships matter to him Reuters.

Trump had already made his position clear two weeks earlier, at a June 24 meeting with NATO's Secretary General Mark Rutte New York Times. When Rutte asked what Trump wanted from the alliance, Trump's answer was simple: "Just be loyal" New York Times. For diplomats, that phrase meant Trump sees NATO not as a shared defense agreement but as a relationship where America expects allies to follow Washington's lead.

Rutte tried to keep the focus on what NATO members could actually agree on: spending more on defense. At a press conference on July 6, he argued that defense spending was the real way to show commitment to the alliance Congress.gov CRS. This was narrower and easier to defend than Trump's list of complaints.

Turkey's role as host mattered too. Trump was expected to announce that the United States would restore Turkey's access to the F-35 fighter jet—a weapon system from which Turkey had been cut off because it bought Russian air defense systems New York Times. Whether Trump would fully restore Turkey's access or only partially remained unclear going into the summit New York Times. Such a decision would be significant because Lockheed Martin and allied militaries have had to adapt for years since Turkey lost access.

NATO invited foreign ministers from Gulf states—Bahrain, Kuwait, Qatar, and the UAE—to Ankara as well, continuing the alliance's effort to build relationships in the Middle East NATO. Trump arrived on July 7 and met with Erdogan in private talks before the main summit sessions White House.

There was one other issue worth noting. Turkish journalists from independent news outlets were prevented from entering summit venues—a restriction that NATO's allies did not publicly challenge, even though they raise concerns about press freedom in Turkey elsewhere Reuters. This reflects how alliance members balance their values against their need for Turkey's cooperation on military and security matters.

What makes this summit unusual is that Trump raised multiple grievances all at the same time. He complained about defense spending, about not getting enough help with Iran, and about the Greenland question—all in one meeting. When countries face several complaints at once like this, it becomes harder for them to fix any one problem without appearing to give in on the others. How the F-35 decision turns out, and whether Trump attaches new demands to it, will likely shape how NATO members approach the alliance in coming months.