Reports that Türkiye may transfer its Russian-made S-400 air defense systems to a third country have returned the issue to the center of discussions on U.S. sanctions and Ankara’s possible return to the F-35 program.

The Trump administration has not yet made a final decision on how Washington will sell F-35 fighters to Turkey

The United States and Turkey are moving closer to a possible roadmap that could pave the way for Ankara’s return to the F-35 fighter jet program, but a major obstacle remains:…