Tracker · Record

The F-35 file

Türkiye helped build the F-35 and was removed from the program in 2019 over its purchase of the Russian S-400. Presidents and lawmakers have talked warmly about reversing that ever since. This page tracks what US law still requires, and what has only been said.

Ongoing

Live tracker · last updated 27 July 2026

The state of play

Where the file stands

Türkiye was one of the partner nations that helped build the F-35 Lightning II, and its flag is still painted on the fuselage of display aircraft. Washington removed it from the program in July 2019 after Ankara took delivery of the S-400 air-defense system from Russia. Seven years later Türkiye has neither given up the S-400 nor got the aircraft back.

The political weather has changed. The legal position has not. On 27 July 2026 President Trump, asked aboard Air Force One about Israeli objections to a sale, said nobody tells him what to sell and called Türkiye a tremendous ally. Five days earlier his own State Department had written to Congress that American policy was unchanged and that Türkiye has not met the conditions set in law. Both statements stand.

Two related tracks have moved while the aircraft has not. In July 2026 the congressional review period lapsed without objection on the export of American F110 engines for Türkiye's own KAAN fighter, and that sale went through. Separately, CAATSA sanctions imposed over the same S-400 purchase remain a live question in the relationship, and Ankara says the two files move together.

How we cover this

This file generates a great deal of political statement and very little legal change, and the two are easy to confuse. On this page, laws, letters, formal notifications and completed transfers are facts of record. Statements by presidents, ministers and lawmakers are marked as statements and attributed to who made them, however senior the speaker.

A promise to consider a sale is not a sale. An expression of goodwill is not a waiver. Where a condition has been met we will say so; where it has not, we will say that too, whichever government it favours.

The obstacle

What US law requires

In a letter to Congress dated 22 July 2026, the State Department set out what Türkiye must do before it can return to the program. These are the conditions as the department described them.

  1. Give up the S-400 air-defense system bought from Russia. Not met. Ankara has not agreed to surrender the system.
  2. Give up the equipment that came with it. Not met.
  3. Guarantee that Türkiye will never acquire a comparable system again. Not met. No such assurance has been made public.
  4. Satisfy the remaining certification requirements written into US law. Not met. No waiver has been signed.

Ankara has not publicly responded to the letter. Its stated position, given by Hulusi Akar, who chairs Türkiye's parliamentary defense committee, is that the S-400 question will be resolved one way or another and that the F-35 process will follow. He has not said how.

The timeline

How it unfolded

The coverage

Our reporting

About this tracker

How this page works

This is a running record, updated as the file develops. Each entry is written in our own words with its source named in the line; nothing here republishes wire copy. The timeline marks what is settled and what is not: solid points are facts of record, red points are legal steps, and hollow points are statements attributed to who made them.

The scope is Türkiye's removal from the F-35 program and the effort to reverse it, together with the S-400 and CAATSA questions that govern it and the KAAN engine export that ran alongside it. The four conditions listed above are the State Department's, as reported to Congress on 22 July 2026, and their status will be updated as each is met or remains open.