"The S-400 will be used as separate systems," he said on the air of the TRT TV channel.
Akar clarified that at the moment "only Russia has adequately responded to Turkey's needs."
In addition, the military leader said that Ankara is ready to buy American Patriot complexes "on favorable terms."
Earlier, the United States expressed serious concern about the commissioning of the Russian S-400 air defense systems by the Turkish army.