UK Telegraph claims this footage is of UK-US mercs participating in the recent Kharkov "offensive," which in reality was a push on small numbers of Russian troops performing fixing operations (keeping Ukraine's forces tied up & away from the main objective, Donbas).
This is a little taste of what abusive Western nations who are used to killing farmers in impoverished nations face when fighting a peer or near-peer military. This is not even the main body of Russia's fighting forces but its fringes.
Think about this too - this the "most heroic" footage they could collect from UK merc Ben Grant who has been in Ukraine since March...
Foreign mercs elsewhere fighting Russia's main forces in first Mariupol and now Donbas usually face 2 fates, death or capture.
