The astonishing video purportedly shows Russian troops destroying a Ukrainian strongpoint with self-propelled 2S5 Giatsint-S guns. https://youtu.be/heu05hC2y5Y The attack was carried out by soldiers from Russia's Central Military District in the city of Avdiivka. In Ukraine's Donetsk Oblast, on 29th February. Russia's Ministry of Defence said in a statement obtained…