Turkish media has released footage of what it says are radar tests of S-400 missile systems, which Ankara recently procured from Russia. The anti-aircraft defenses have been tried on US-made F-16 jets.

The trial took place at a military facility outside Turkey’s capital city of Ankara. Footage released by one of Turkey’s largest news agencies, Ihlas Haber Ajansi, shows at least one F-16 fighter jet performing low and high fly-bys over the compound, while S-400s track it.

The radars appear to be fully operational as they are seen vigorously spinning. A herd of sheep is seen grazing right outside the compound, seemingly unimpressed by the roaring jet engines.

The S-400 radar tests caused an uproar in the US, which has long tried to disrupt the arms deal between Moscow and Ankara – yet to no avail. Top American officials called them an open “mockery” of US President Donald Trump by his Turkish counterpart Recep Tayyip Erdogan and urged new sanctions against Ankara.

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The S-400 issue has been a major problem in relations between Ankara and Washington lately, ultimately resulting in Turkey getting kicked out of the F-35 program. Still, Ankara appears to be unshaken by the pressure and the S-400s are expected to be operational next April after the country’s servicemen receive appropriate training.

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