Paul Craig Roberts: How Can You Tell Whether Russia Has Invaded Ukraine?

http://www.paulcraigroberts.org/2014/09/01/can-tell-whether-russia-invaded-ukraine/

How Can You Tell Whether Russia has Invaded Ukraine? 
http://cluborlov.blogspot.com/2014/08/how-can-you-tell-whether-russia-has.html
“Russia Invades Ukraine”, Strategic NATO Public Relations Stunt. Where Are The Russian Tanks?
http://www.globalresearch.ca/russia-invades-ukraine-strategic-nato-public-relations-stunt-where-are-the-russian-tanks/5398148