Unverified pictures and video footage has begun to circulate on social media purporting to show a pair of Russian Su-57 fighters, also known as the PAK FA and T-50, touching down at the country's Khmeimim air base in Syria's Latakia province. The Kremlin has already used the Syrian conflict as an excuse to demonstrate new and advanced weaponry and even if this video turns out to not show operations in Syria, it is likely only a matter of time before the aircraft touch down in the country.