U.S. officials have presented a new proposal to Türkiye aimed at resolving the long-standing dispute over Ankara’s purchase of the Russian S-400 air defense system, claimed Greek media.

The offer suggests that Türkiye could rejoin the F-35 fighter jet program if the Russian-made missile system is either handed over to the U.S. or relocated to Incirlik Air Base, where it would be controlled by U.S. forces.

The Turkish government initially rejected the proposal, stating that the S-400 systems would remain in storage within Türkiye.

The US has indicated a willingness to lift the CAATSA (Countering America’s Adversaries Through Sanctions Act) sanctions imposed on Türkiye following its purchase of the S-400s if a resolution can be reached.

Resolving the S-400 issue could also allow for Türkiye’s “full reintegration” into the F-35 fighter jet program, a move that both NATO and Washington are reportedly keen to finalize.