A complex negotiation involving Washington, Ankara and Moscow is gathering momentum as efforts advance to reopen a path for Turkey’s return to the F-35 fighter jet program, a development that is raising concerns in Athens.

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:…

Greece is conveying its concerns to the US over the potential return of Turkey to the F-35 fighter jet program, while emphasizing that weapons sold to one ally should not be used…