17 July 2019, Turkey was suspended from the F-35 program, the US stating "F-35 cannot coexist with a Russian intelligence collection platform that will be used to learn about its advanced capabilities" and on December 14, 2020, the US imposed CAATSA sanctions on Turkey. As of 2020, 4 batteries consisting of 36 fire units, and 192+ missiles were delivered to Turkey. Turkey has tested the S-400 air defense system against drones and F-16 fighter jets at low altitudes. According to Turkish media, the Turkish military has identified some deficiencies against a slow-moving object at low altitude. India On 15 October 2016, during the BRICS Summit, India and Russia signed an Inter-governmental Agreement (IGA) for the supply of five S-400 regiments to India. The US$5.43 billion deal (₹40,000 crore) was formally signed on 5 October 2018, ignoring the threat of US sanctions. The deliveries are expected to commence by the end of 2020 and brought into service in October 2020. In March 2021, U.S. Secretary of Defense Lloyd Austin discussed India's planned purchase of Russia's S-400 air missile system and warned that the purchase of S-400 could trigger CAATSA sanctions. In November 2021, Russia stated that it had begun delivery of S-400 missiles to India and that deployment was proceeding as scheduled. India has already received two S-400 system from Russia and third squadron will be delivered in November 2022. According to reports, that system was delivered in November 2021. Alexander Mikheyev, Rosoboronexport CEO, said “The contract with India is being implemented successfully. In the near future, we will supply a second regiment. The first one has been provided already. More than 200 specialists have been trained. All five regiments will be supplied by the end of 2023”. Foreign interest Saudi Arabia In September 2009 the S-400 was reportedly part of a US$2 billion arms deal between Russia and Saudi Arabia. The Saudis wanted to acquire the more advanced S-400, but Russia was only willing to sell S-300 air defense system at the time. By November 2019 the deal had still not been finalized. Saudi Arabia is no longer considering the Russian S-400 air defense system, following the kingdom’s deal for an American alternative. The American Terminal High Altitude Area Defense (THAAD) system has been cleared for sale to the Saudis by the U.S. State Department cleared the THAAD estimated at $15 billion in 2017 dollars. Iran In June 2019 some