
Trump’s F-35 Offer to Erdoğan Tests NATO Unity and U.S. Red Lines
Donald Trump is poised to tell President Recep Tayyip Erdoğan he wants Türkiye back in the F‑35 stealth jet program, reversing a 2019 ban tied to Ankara’s Russian S‑400 purchase. The move would force Washington, Ankara, Moscow and NATO to confront hard choices about air defenses, sanctions, and alliance cohesion. Readers will learn what’s on the table, what would have to change, and why it matters for the balance of power from the Black Sea to the eastern Mediterranean.
Donald Trump is preparing to reopen one of NATO’s most sensitive defense deals by telling Turkish President Recep Tayyip Erdoğan he wants to restore Türkiye’s access to the U.S.-led F‑35 stealth fighter program, according to accounts of his planned message. For the alliance, the signal goes far beyond aircraft procurement; it reopens the unresolved question of whether a front‑line NATO state can be fully integrated into Western airpower while holding on to a Russian‑made strategic air defense system.
Trump is expected to convey his position directly to Erdoğan around the NATO summit in Ankara, after departing the United States en route to the meeting on 7 July. Reinstating Türkiye would reverse the ban he himself imposed in 2019 after Ankara acquired and tested Russia’s S‑400 surface‑to‑air missile system. Any return would have to navigate U.S. law and congressional restrictions that currently bar F‑35 transfers to countries operating the S‑400, and people familiar with the internal discussions say options under review hinge on Türkiye no longer possessing or operating that system.
Ideas being floated include transferring the S‑400 batteries to a third country or otherwise removing them from Turkish operational control. None of these options is simple. Ankara paid Moscow for the S‑400 and defended the purchase as an assertion of sovereignty after years of frustration over Western export controls. Moscow, for its part, treated the sale as a breakthrough in its effort to pry a key NATO state away from exclusive Western supply. Any move to sideline the S‑400 risks friction on both fronts.
For Turkish pilots, air force planners, and defense workers, a path back into the F‑35 program would reopen access not only to a fifth‑generation fighter but also to maintenance work, technology partnerships, and the industrial contracts that once made Türkiye a significant manufacturing hub in the jet’s global supply chain. For U.S. contractors and planners, it would mean recalculating training timelines, basing plans, and the sensitive question of how to protect F‑35 performance data and signatures from exposure to Russian radar systems.
Strategically, the decision would reverberate well beyond Turkish airbases. The F‑35 is central to NATO’s deterrent posture on its southern flank, covering the Black Sea, eastern Mediterranean, and Middle East. Bringing Türkiye back in would strengthen the alliance’s forward presence in a region where Russian, Syrian, and Iranian forces are active. But it also risks signaling to other partners that U.S. sanctions and export penalties tied to Russian arms deals are negotiable, potentially weakening Washington’s hand with countries from India to Gulf states that juggle between Western and Russian systems.
Inside NATO, the conversation touches on deeper questions of trust. Allies have long worried that the technical coexistence of the F‑35 and S‑400 in the same national force could give Russian engineers insight into the jet’s stealth profile, even without direct data sharing. That fear was the core argument for Türkiye’s suspension in 2019. Any workaround now would have to convince skeptical European partners that the risk to alliance‑wide airpower is contained, not merely rebranded.
The broader context is Trump’s personal relationship with Erdoğan, which has swung between confrontation and accommodation over the past decade. A public push to restore F‑35 ties during a NATO summit hosted in Ankara would give Erdoğan a domestic victory narrative, reinforcing his portrayal of Türkiye as an indispensable power that can extract concessions from Washington even after buying Russian kit. For U.S. lawmakers, it would test how far they are willing to bend statutory constraints in pursuit of alliance management.
The most revealing line in this story is simple: for NATO, the question is no longer whether Türkiye’s S‑400s were a mistake, but what political price the alliance is prepared to pay to pretend they can be made to disappear. The next signals to watch are whether Ankara offers any concrete steps on the S‑400, how publicly Trump frames his offer during the Ankara summit, and how quickly key members of Congress and other NATO capitals line up either behind or against bringing Türkiye back into the F‑35 club.
Sources
- OSINT