As Turkey's rapprochement with the United States gathers pace, the future of Turkish-purchased Russian S-400 missiles is increasingly in question. The missile deal is a potent symbol of Ankara's close ties with Moscow, but Washington is offering to sell Turkey its advanced F35 military jet for the removal of the Russian weapons.
Ankara was kicked out of the jet program after it purchased Russian S-400 anti-aircraft missiles, which Washington said compromised the F-35's stealth technology.
