While Turkish President Recep Tayyip Erdogan has announced that the Russian-made S-400 missile system will be fully operational by April 2020, the first fleet of the S-400s is expected to be operational no later than November, security sources told Al-Monitor.
A number of S-400 system shipments made it to Turkey in recent days, and their contents may be providing important clues about how Ankara plans to handle possible US blowback over the S-400 deal.
