“We repeatedly reiterate that the US is our strategic partner, and we expect them to act in accordance with the spirit of strategic partnership. There is no such thing as giving up on this system anymore. We need to focus on finding a solution with the existence of this system,” Akar said in an interview with official Anadolu news agency published on Wednesday, Presstv Reported.
He added that Ankara will continue its contacts with all relevant parties to handle disputes caused in the wake of S-400 purchase from Moscow.
Akar highlighted that Turkey has already taken delivery of two batteries of the S-400 system, and is now in the process of its installation.
The Turkish defense chief also said that relevant military personnel will complete their training for the activation of S-400 missile defense systems acquired from Russia by the end of December,
Akar concluded that Russian instructors will visit Turkey next spring and continue to train the personnel, expressing hope that the S-400 missile defense system will be into operation then.
Turkey's Defense Ministry announced in a statement on September 15 that the delivery of the second battery of S-400 missile defense systems has been completed at Murted Airfield Command, located 35 kilometers (22 miles) northwest of the capital Ankara, and that the systems would become operational in April 2020.
The first part of the S-400 delivery was completed in late July. Russia delivered 30 planeloads of S-400 hardware and equipment – as part of the initial batch – to Murted Airfield Command.
Ankara and Washington have been at loggerheads over Turkey's purchase of the S-400 systems, which the United States says are not compatible with NATO defenses and poses a threat to Lockheed Martin F-35 stealth fighter jets.
Turkish Foreign Minister Mevlut Cavusglu told CNN Turk television news network in an exclusive interview in mid-September that S-400 missile systems would be activated despite repeated US warnings.
“They (US officials) told us 'don't activate them and we can sort this out', but we told them that we didn't buy these systems as a prop,” the top Turkish diplomat said, adding that Turkey would be open to buying US-made Patriot surface-to-air missile systems as well.
On September 9, US Treasury Secretary Steven Mnuchin said Donald Trump’s administration was considering imposing sanctions on Turkey over purchase of S-400 systems, but no decisions have been made yet.
Cavusoglu told private Turkish-language TGRT Haber television news network in an exclusive interview back on July 22 that his country would take retaliatory measures in case the United States slapped sanctions on Ankara over the Russian-made systems.
“If the United States portrays an adversarial attitude towards us, we will take retaliatory measures, as we've told them. This is not a threat or a bluff. We are not a country that will bow down to those who show an animosity towards Turkey,” he said.
Cavusoglu added that he did not expect the US administration to take such an action.
The White House said on July 17 that it was no longer possible for Turkey to be involved in the program for the F-35 stealth jets after parts of S-400 began arriving in Ankara.
It also said it would impose sanctions on Turkey under the Countering America's Adversaries Through Sanctions Act (CAATSA).
The US Congress passed the CAATSA against Russia in August 2017 over allegations of interfering in the 2016 presidential election. The law, among other things, imposes sanctions on countries and companies that engage in contracts to purchase weaponry from Russia.
Moscow and Ankara finalized an agreement on the delivery of the S-400 in December 2017.
Back in April 2018, Erdogan and his Russian counterpart Vladimir Putin said in Ankara that they had agreed to expedite the delivery of the S-400. At the time, it was said that the delivery could be made between late 2019 and early 2020.
A number of NATO member states have criticized Turkey for purchase of the S-400, arguing the missile batteries are not compatible with those of the military alliance.
They also argue that the purchase could jeopardize Ankara’s acquisition of F-35 fighter jets and possibly result in US sanctions.
The S-400 is an advanced Russian missile system designed to detect, track, and destroy planes, drones, or missiles as far as 402 kilometers away. It has previously been sold only to China and India.
Ankara is striving to boost its air defense, particularly after Washington decided in 2015 to withdraw its Patriot surface-to-air missile system from Turkish border with Syria, a move that weakened Turkey’s air defense.
Before gravitating towards Russia, the Turkish military reportedly walked out of a $3.4-billion contract for a similar Chinese system. The withdrawal took place under purported pressure from Washington.