And, Turkey has also deployed the deterrent - ASELSAN KORAL EW system - in the Syrian border since 2015. It was in response to the Russian initiative to deploy S-400 following the Turkey-Russia crisis over the downed a/c. Even the US folks have admitted that it's a very powerful and capable system, and it's much above their expectations!!! Five such systems have been delivered to the TuAF for the deployment at the field after more than a thousand tests in the real war-like situation with a success rate above expectations. I am pretty sure Pak folks are having a thorough look at this system...
Pak security is also Turkey's security - Prof. Dr. Ahmet Davut'olu, former Turkish PM and FM