The recent NATO Summit in Ankara was dominated by former U.S. President Donald Trump, leading to dramatic shifts in global diplomacy over 48 hours. Leaders experienced a rollercoaster from anticipating confrontation—especially concerning Iran and defense spending—to a surprising “love-in” with Trump. While the mood improved, critical questions regarding Iran, Ukraine, and America’s long-term commitment to NATO persist, underscoring Trump’s singular influence on geopolitical stability.
For a tumultuous 48-hour period in Ankara, Turkey, the global stage seemed to dance to the rhythm of former U.S. President Donald Trump.
Markets worldwide reacted nervously, NATO allies prepared for potential discord, Ukraine sought assurances for its future, and the Iran situation threatened to derail the entire agenda. Leaders found themselves oscillating between anticipating a major diplomatic crisis and, moments later, describing a surprising "love-in" with the very president many feared would fracture the alliance.
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Having covered numerous significant international events over 25 years at CNBC—including G7, G8, G20 summits, OPEC meetings, and climate conferences—this reporter has rarely witnessed such swift and dramatic shifts in fortune, impacting so many global players, all compressed into a mere two days.
The recent NATO Summit transcended a typical diplomatic assembly; it became a vivid, real-time illustration of how rapidly the geopolitical landscape can transform when President Trump takes center stage. While major summits involving the United States naturally focus on Washington, this particular gathering felt distinct, revolving not just around a nation, but singularly around one individual.
Consider the myriad high-stakes issues at play: Iran's nuclear ambitions, Russia's ongoing conflict in Ukraine, the strategic importance of Greenland, broader European security concerns, and Spain's consistent failure to meet NATO's defense spending targets. Even Ukrainian President Volodymyr Zelenskyy's precarious standing with Washington was a central theme. Every critical issue converged at this summit, and each ultimately circled back to the influence of the U.S. president.
Leading into the summit, every European NATO member, alongside Canada, found themselves under scrutiny. Trump and Defense Secretary Pete Hegseth had escalated their sharp criticism of NATO, faulting allies for inadequate support regarding Iran and insufficient contributions to their own defense.
(Related video: Europe Early Edition — Denmark will defend Greenland, says Prime Minister Mette Frederiksen)
Trump also renewed his criticism of Denmark over its refusal to cede Greenland for what he deemed "the greater good"—a point of contention regarding whose "greater good" was actually being served. Spain, notably, faced intense pressure for lagging even further behind other NATO partners in its military expenditure commitments.
President Zelenskyy was present once again, aiming to garner NATO's crucial support, though the reception he might receive from the "Leader of the Free World" often remained unpredictable.
Then came a shocking declaration from Mr. Trump: he was abandoning negotiations with the Iranians, discarding the existing memorandum of understanding, and ending the ceasefire. This announcement sent markets tumbling and oil prices soaring, suggesting the summit was hurtling towards a major confrontation.
Yet, in an instant, the narrative dramatically flipped. The mood shifted abruptly, and suddenly, an unexpected camaraderie filled the air.
Even prior to Trump's culminating press conference, world leaders privately conveyed to this reporter that their meeting with Trump had been exceptionally productive. They noted his apparent contentment, his attentive listening during the confidential closed-door discussions with each leader, and his departure in high spirits.
Could this truly be the same Donald Trump who had been openly chastising partners only hours earlier? Apparently so.
This reporter harbored some skepticism, but within hours, heard the confirmation directly from the source. At his summit-closing press conference, attended by a thousand journalists, the U.S. president affirmed that the "love-in" was indeed genuine.
Flanked by Secretary of State Marco Rubio, Treasury Secretary Scott Bessent, Hegseth, and Deputy Chief of Staff Stephen Miller, President Trump described the "tremendous love in the room" during the leaders' meeting. "The unity was amazing," he declared. "The love was pretty wild." This represented a remarkable reversal from the public criticism Trump had leveled at many of these same allies just a few hours prior.

The summit yielded clear winners and losers. Turkish President Recep Tayyip Erdoğan emerged strengthened, having expertly hosted a seamless summit and appearing closer to securing U.S. approval for F-35 fighter jets. Mark Rutte, the NATO Secretary General, maintained his commendation for Trump, thereby helping to sustain U.S. engagement with NATO, at least for the foreseeable future. Spain and Denmark, despite initial verbal assaults, concluded the summit without significant U.S. rebuke during Trump's closing remarks.
Another prominent winner was President Zelenskyy, whose standing with the U.S. president seemingly improved as Ukraine demonstrated its ability to stabilize the battlefield and effectively take the fight deep into Russia against considerable odds. The Ukrainian leader may even have secured a crucial deal to produce Patriot missile systems, a long-standing priority for Kyiv.
As for the losers? Clearly, Russian President Vladimir Putin would have been displeased by NATO's renewed show of unity, its substantial advancements in defense spending commitments, and Ukraine's notably warmer reception from Trump. And Iran? That remains the profound unknown.
When given the opportunity, this reporter directly asked the U.S. president: "What happens next if you really have given up on the ceasefire?" His response remained opaque. He simply reiterated his unwavering stance that Iran would never possess a nuclear weapon under his leadership.
Perhaps that serves as the ultimate enduring lesson from these extraordinary 48 hours. While the atmosphere within NATO underwent a dramatic transformation during the summit, the most critical questions persist unresolved. What is the path forward for Iran? Can the improved rapport between Trump and NATO allies extend beyond this meeting? And what are the ultimate implications for Ukraine's future?
These questions hold far greater weight than any political spectacle. However, if this summit underscored anything, it is the profound speed with which the geopolitical landscape can change when Donald Trump occupies its focal point. Allies, adversaries, and global markets are all adapting to this reality in real time.
