At a press conference in Ankara, Putin announced that Russia would push forward its delivery dates for the S-400 defense systems, which have been due after a contract was signed between the two countries in December, despite objections from Turkey’s NATO allies.

“We are speeding up production, and we have finalized the prices, which is very important,” Putin said, while standing next to Recep Tayyip Erdogan. “In terms of shortening the delivery schedule, we have done this at the request of our Turkish friends and partners.”

Putin did not specify when Ankara would receive Moscow’s most sophisticated export air defense system, but said that there were “no political or strategic limitations” to technology-sharing that could eventually see Turkey produce its own version of the radar and rocket complex, and said that producers of other weapons systems were keen to enter the local market.