The Organization for Security and Co-operation in Europe has been monitoring the line of control separating the Kiev regime forces and those from DPR since 2015.
If Russian forces are operating inside Ukraine where are the OSCE reports showing their activities?
Putin uses "little green men " like he used in Crimea. What OSCE has spotted is Russian convoys entering Ukraine on dirt roads to avoid detection and Russia's newest military hardware in Donbas, like the R-330Zh, Zhitel.
"OSCE drone captures latest Russian incursion into their western neighbor" It is important to note that these convoys traveled dirt roads in order to avoid
https://medium.com/dfrlab/minskmonitor-russian-military-convoy-filmed-entering-ukraine-aa56296e96d5