When Donald Trump stood at a podium in Ankara and told Recep Tayyip Erdoğan that Turkey "deserves" the F-35, he wasn't making a casual compliment. He was attempting to tear up one of the more consequential arms-export decisions of the last decade — one his own first administration set in motion — and he was doing it on foreign soil, at a NATO summit, with the cameras rolling.

Turkey was ejected from the F-35 Joint Strike Fighter program in 2019 after Ankara purchased the Russian S-400 surface-to-air missile system, triggering sanctions under the Countering America's Adversaries Through Sanctions Act, known as CAATSA. The logic was straightforward and bipartisan: allowing an F-35 operator to also operate Russian radar and sensor systems risked exposing the jet's stealth characteristics to Moscow. Lockheed Martin and the broader F-35 consortium had already completed significant work with Turkish defense suppliers before the expulsion, making the rupture costly for all parties. Turkey lost its place in the program; the consortium lost capable manufacturing partners.

Trump in Ankara announced he would lift the CAATSA sanctions on Turkey and said the F-35 sale is "under consideration" — language that, from a sitting U.S. president at a summit with the prospective buyer, functions as considerably more than a hypothetical. Erdoğan, for his part, said he was "hopeful" of a positive outcome, the kind of diplomatic understatement that signals the groundwork has been laid well in advance of any public announcement.

The technical objections have not gone away. The core concern when Turkey was expelled — that S-400 systems operating alongside F-35s creates an intelligence pathway for Russian engineers to study how NATO's most advanced stealth aircraft behaves — remains unresolved. Turkey has not decommissioned or returned the S-400 hardware. Ankara has offered various diplomatic framings over the years suggesting the systems could be mothballed or placed in storage, but no verifiable, binding arrangement has been codified. Without that, critics argue, the security case against the sale is exactly as strong as it was in 2019.

Israel's government has stated publicly, in an on-the-record assessment from Prime Minister Benjamin Netanyahu, that transferring F-35s to Turkey would "undermine the balance of power" in the Middle East. That is not a minor diplomatic murmur — it is a direct objection from Washington's closest regional ally about the region's most capable tactical aircraft. The F-35's combination of stealth, sensor fusion, and long-range strike capacity makes it categorically different from anything Turkey currently operates, and Israel's air superiority calculus has long depended partly on the gap between its capabilities and those of regional neighbors.

Domestically, Trump is facing resistance from within his own coalition. Conservative commentators and Republican lawmakers who rarely break with the administration have called the prospective deal a strategic mistake. The concern is not just about Turkey's NATO reliability record — Ankara blocked Sweden's and Finland's NATO accession bids for over a year, extracted significant concessions before relenting, and has maintained active trade relationships with Russia throughout the war in Ukraine — but about the message it sends regarding the enforceability of U.S. arms export conditions. If CAATSA sanctions can be walked back by a president with a warm relationship with the sanctioned party's leader, the statute loses much of its deterrent value.

The summit itself had an edge. Trump reportedly criticized European NATO allies for insufficient defense spending, a familiar grievance that landed with particular sharpness given that Turkey — the ally he was publicly rewarding — has its own complicated record on alliance commitments. The optics of blasting western European partners while praising Erdoğan, a leader with a documented record of democratic backsliding and press suppression, were not lost on observers in Brussels or Washington.

What happens next depends on whether Congress moves to block the transfer. CAATSA sanctions were imposed by statute, and while presidential waiver authority exists, a full legislative reversal would require congressional action. Several lawmakers have already signaled opposition. The F-35 program's integrity, the enforceability of American arms-export law, Israeli security concerns, and the question of what NATO membership actually demands from its members — all of it is now in play, put there by a thirty-second statement on a Ankara stage.