Procurement agreement of S-400 Long Range Air Defence Missile System to meet the requirement of air and missile defence of Turkey was signed with the Russian Federation on April 11, 2017; within the scope of the agreement, the delivery of the first battery equipment of S-400 Long Range Air Defence Missile System was made on July 12-25, 2019.

Delivery of the 2nd battery equipment of S-400 Long Range Air Defence Missile System started at Mürted Airbase/Ankara on August 27, 2019 and was completed today.

The installation of the system and training of Turkish military personnel have still been going on. The system is planned to get operational in April 2020.