Washington warns Ankara not to buy S-400 systems
Source:PA Intelligence Date:27Jun2018
A top U.S. State Department official warned Turkey on Tuesday that its purchase of Lockheed Martin F-35 Joint Strike Fighter jets would be jeopardized if it does not drop a plan to buy S-400
Turkey’s Slow-Cooking Crisis With Its Allies Is Coming to a Boil
Source:Defense One Date:23Jun2018
This article makes fascinating claims: As reported in the media, Turkey and the U.S. have been negotiating since early spring for a new deal that would have Turkey walk away from its S-400 deal