I just asked because of 'evidence', because looking at Google with the words "ukraine russian tanks +evidence" brings up not one real case!
Maybe Facebook .... ?
One of it being:
"
Has Blackwater been deployed to Ukraine? Notorious U.S. mercenaries 'seen on the streets of flashpoint city' as Russia claims 300 hired guns have arrived in country"
https://www.google.de/?gws_rd=ssl#q=...ks+%2Bevidence
Shouting "Blackwater!" ? Hmm